钐中毒 samarium poisoning
题目
钐中毒 samarium poisoning
相似考题
更多“钐中毒 samarium poisoning”相关问题
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第1题：
磁带中的磁粉主要由()类磁性物质微粒构成。A、铁
B、钴
C、镍
D、钐
答案：A
-
第2题：
狂证属于肝胆火热偏盛者,治疗应首选A.生铁落钐:B.当归龙荟丸C.柴胡疏肝散S狂证属于肝胆火热偏盛者，治疗应首选
A.生铁落钐：
B.当归龙荟丸
C.柴胡疏肝散
D.丹栀逍遥散
E.朱砂安神丸
正确答案：A
生铁落饮能清心泻火，涤痰醒神，适用于痰热上扰，窍蒙神昏之狂证。丹栀逍遥散具有疏肝解郁、清泻肝火的功效，适用于肝郁化火之郁证。而B治疗便秘；C治疗肝气郁结；E适用于阴血不足，虚火亢盛，惊悸怔忡，心烦神乱，失眠多梦等证。考点：狂证和郁证的治疗。 -
第3题：
共用题干
第一篇
Food Poisoning
Food sometimes gets poisoned with harmful things,A person who eats such food can get an illness called
food poisoning. Food poisoning is usually not serious,but some types are deadly.The symptoms of food poi-
soning usually begin within hours of eating the poisoned food.Fever is one of the most common symptoms.
Certain microorganisms（微生物）cause most types of food poisoning. Bacteria and other microorganisms
can poison eggs,meat,vegetables,and many other foods.After entering the body,these tiny living things re-
lease（释放）poisons that make people sick.
Some chemicals can also cause food poisoning. They are often added to food while it is being grown,pro-
cessed,or prepared.For example,many farmers spray chemicals on crops to kill weeds and insects.Some
people may have a bad reaction to those chemical、when they eat the crops.
Some plants and animals contain natural poisons that are harmful to people.These includo certain kinds
of seafood,grains,nuts,seeds,beans,and mushrooms.
When people handle food properly,the risk of food poisoning is very small.Microorganisms multiply rapidly
in dirty places and in warm temperatures.This means that people should never touch food with dirty hands or
put food on unwashed surfaces.Food should be kept in a refrigerator to stop microorganisms from growing,
Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered
with chemicals before eating it.Finally,people should not eat wild mushrooms or other foods that grow in the
wild.Some of these foods may contain natural materials that are poisonous to humans.In addition,some types
of fish can be poisonous.
Most people recover from food poisoning after a few days of resting and drinking extra water. If people
eat natural poisons,they must go to the hospital right away to have their stomachs emptied.It can be inferred from the passage that_______________.
A:natural materials are safe in food processing
B:chemicals are needed in food processing
C:food poisoning can be kept under control
D:food poisoning is out of control答案：C解析：该题目考查关于食物中毒的描述。通读全文，可知第一段对食物中毒做了一个简单的 介绍。由第一段第三句“食物中毒通常并不严重，但有些也是致命的”可知D选项表述与原文 一致，B选项“食物中毒就意味着死亡”太绝对，与原文表述不符。从该段第四、五句可知食物 中毒会有很多的症状，最常见的是发烧，由此可知A选项表述正确。从第二段第一句可知食物 中毒也有很多种类，因此C选项表述与原文一致。据此分析，表述错误的只有B选项，因此为正确答案。
根据题目中关键词symptoms迅速定位至第一段最后两句话“食物中毒的症状往往在吃 完食物数小时内就会出现、发烧是最常见的一个症状。”由此可知，A选项表述与原文不一致， C选项表述与原文相符。B、D选项未提及。因此止确答案为C。
该题目考查引起食物中毒的原因。通读全文可知第二段至第四段讨论了什么东西会 引起食物中毒——微生物、化学制品及一些含有天然毒素的植物和动物。C 、A、D兰个选项分 别与之对应。而由第五段“Food should be kept in a refrigerator to stop microorganisms from growing." 可知low temperature、不会导致food poisoning。因此正确答案为B。
根据题目可迅速定位到第五段，由文中的“肉类需彻底烹调以杀灭有毒的微生物。覆 盖有化学物质的食物食用前要清洗：最后，人们不应该吃野生蘑菇或其他野生食物……”可以 推测出D选项表述正确。而A选项表述太绝对，B、C选项则无细节支持。
通读全文可知该篇文章讨论了食物中毒的症状、原因及如何降低食物中毒的风险。由 第五段第一句和最后一段可推测出C选项表述与原文意思相符，D选项表述错误。由第四段 可知天然物质也会引起食物中毒，因此A选项与原文表述不一致。B选项文中未提及。据此 分析正确答案为C。第二篇 本文主要介绍了核辐射危害的严重性、潜伏性和长期性。 -
第4题：
共用题干
第一篇
Food Poisoning
Food sometimes gets poisoned with harmful things,A person who eats such food can get an illness called
food poisoning. Food poisoning is usually not serious,but some types are deadly.The symptoms of food poi-
soning usually begin within hours of eating the poisoned food.Fever is one of the most common symptoms.
Certain microorganisms（微生物）cause most types of food poisoning. Bacteria and other microorganisms
can poison eggs,meat,vegetables,and many other foods.After entering the body,these tiny living things re-
lease（释放）poisons that make people sick.
Some chemicals can also cause food poisoning. They are often added to food while it is being grown,pro-
cessed,or prepared.For example,many farmers spray chemicals on crops to kill weeds and insects.Some
people may have a bad reaction to those chemical、when they eat the crops.
Some plants and animals contain natural poisons that are harmful to people.These includo certain kinds
of seafood,grains,nuts,seeds,beans,and mushrooms.
When people handle food properly,the risk of food poisoning is very small.Microorganisms multiply rapidly
in dirty places and in warm temperatures.This means that people should never touch food with dirty hands or
put food on unwashed surfaces.Food should be kept in a refrigerator to stop microorganisms from growing,
Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered
with chemicals before eating it.Finally,people should not eat wild mushrooms or other foods that grow in the
wild.Some of these foods may contain natural materials that are poisonous to humans.In addition,some types
of fish can be poisonous.
Most people recover from food poisoning after a few days of resting and drinking extra water. If people
eat natural poisons,they must go to the hospital right away to have their stomachs emptied.Food poisoning can be caused by all of the following EXCEPT_______________.
A:some chemicals
B:low temperatures
C:some tiny living things
D:certain natural materials答案：B解析：该题目考查关于食物中毒的描述。通读全文，可知第一段对食物中毒做了一个简单的 介绍。由第一段第三句“食物中毒通常并不严重，但有些也是致命的”可知D选项表述与原文 一致，B选项“食物中毒就意味着死亡”太绝对，与原文表述不符。从该段第四、五句可知食物 中毒会有很多的症状，最常见的是发烧，由此可知A选项表述正确。从第二段第一句可知食物 中毒也有很多种类，因此C选项表述与原文一致。据此分析，表述错误的只有B选项，因此为正确答案。
根据题目中关键词symptoms迅速定位至第一段最后两句话“食物中毒的症状往往在吃 完食物数小时内就会出现、发烧是最常见的一个症状。”由此可知，A选项表述与原文不一致， C选项表述与原文相符。B、D选项未提及。因此止确答案为C。
该题目考查引起食物中毒的原因。通读全文可知第二段至第四段讨论了什么东西会 引起食物中毒——微生物、化学制品及一些含有天然毒素的植物和动物。C 、A、D兰个选项分 别与之对应。而由第五段“Food should be kept in a refrigerator to stop microorganisms from growing." 可知low temperature、不会导致food poisoning。因此正确答案为B。
根据题目可迅速定位到第五段，由文中的“肉类需彻底烹调以杀灭有毒的微生物。覆 盖有化学物质的食物食用前要清洗：最后，人们不应该吃野生蘑菇或其他野生食物……”可以 推测出D选项表述正确。而A选项表述太绝对，B、C选项则无细节支持。
通读全文可知该篇文章讨论了食物中毒的症状、原因及如何降低食物中毒的风险。由 第五段第一句和最后一段可推测出C选项表述与原文意思相符，D选项表述错误。由第四段 可知天然物质也会引起食物中毒，因此A选项与原文表述不一致。B选项文中未提及。据此 分析正确答案为C。第二篇 本文主要介绍了核辐射危害的严重性、潜伏性和长期性。 -
第5题：
稀土钴硬磁材料是（）与稀土元素的金属间化合物。常见的材料主要有钐钴、镨钴、镨钐钴和铈钴铜等。
正确答案:钴 -
第6题：
酒精中毒(a1coho1poisoning)
正确答案: 当一次饮入过量的酒精或酒类饮料，引起中枢神经系统由兴奋转为抑制状态，称为酒精中毒。 -
第7题：
朱建华等提出了氧化还原分离铕液膜法，可自钐、铕、钆混合稀土中分离到纯度（）%的铕，回收率84.7%。
- A、85
- B、87.6
- C、99.7
- D、100
正确答案:C -
第8题：
If a user attempts to go to a website and notices the URL has changed， which of the following attacks is MOST likely the cause？（）
- A、DLL injection
- B、DDoS attack
- C、DNS poisoning
- D、ARP poisoning
正确答案:C -
第9题：
单选题In some cases the organisms that cause blood poisoning enter the bloodstream through contaminated needles or other improperly sterilized instruments.Acontacted
Binfected
Ccontagious
Dinfectious
正确答案： D解析：
句意：在某些情况下，造成血液中毒的生物体通过被污染的针头或其他没有正常消毒的器具进入血液。infect污染，感染。contacted（接触的）不等于“污染”或“感染”。contagious和infectious（感染的，传染的）只说明某种疾病或症状的性质，而不能说一个针头是传染的。另外，针头如果具有传染性是因为它被“污染”了（contaminated）。故B为正确答案。 -
第10题：
名词解释题酒精中毒(a1coho1poisoning)正确答案： 当一次饮入过量的酒精或酒类饮料，引起中枢神经系统由兴奋转为抑制状态，称为酒精中毒。解析： 暂无解析 -
第11题：
单选题时间分辨荧光分析法最为常用的稀土金属是（）A钐
B镧
C铽
D铕
E镝
正确答案： A解析： 铕（Eu）和铽（Tb）是常用的稀土金属，Tb不适合用于生物分析，故Eu最为常用。 -
第12题：
名词解释题细菌毒素中毒（bacterial exotoxin poisoning）正确答案： 病原菌污染食物后，其在食物中生长繁殖产生外毒素，外毒素随食物进入动物体内，使机体呈现中毒症状。这种由外毒素的作用引起的食物中毒称为细菌毒素中毒。解析： 暂无解析 -
第13题：
在荧光免疫技术中，应用最广的镧系稀土元素是
A、镧
B、钐
C、铕
D、钆
E、铽
参考答案：C
-
第14题：
时间分辨荧光分析法最为常用的稀土金属是A:钐
B:镧
C:铽
D:铕
E:镝答案：D解析：铕(Eu)和铽(Tb)是常用的稀土金属，Tb不适合用于生物分析，故Eu最为常用。 -
第15题：
共用题干
第一篇
Food Poisoning
Food sometimes gets poisoned with harmful things,A person who eats such food can get an illness called
food poisoning. Food poisoning is usually not serious,but some types are deadly.The symptoms of food poi-
soning usually begin within hours of eating the poisoned food.Fever is one of the most common symptoms.
Certain microorganisms（微生物）cause most types of food poisoning. Bacteria and other microorganisms
can poison eggs,meat,vegetables,and many other foods.After entering the body,these tiny living things re-
lease（释放）poisons that make people sick.
Some chemicals can also cause food poisoning. They are often added to food while it is being grown,pro-
cessed,or prepared.For example,many farmers spray chemicals on crops to kill weeds and insects.Some
people may have a bad reaction to those chemical、when they eat the crops.
Some plants and animals contain natural poisons that are harmful to people.These includo certain kinds
of seafood,grains,nuts,seeds,beans,and mushrooms.
When people handle food properly,the risk of food poisoning is very small.Microorganisms multiply rapidly
in dirty places and in warm temperatures.This means that people should never touch food with dirty hands or
put food on unwashed surfaces.Food should be kept in a refrigerator to stop microorganisms from growing,
Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered
with chemicals before eating it.Finally,people should not eat wild mushrooms or other foods that grow in the
wild.Some of these foods may contain natural materials that are poisonous to humans.In addition,some types
of fish can be poisonous.
Most people recover from food poisoning after a few days of resting and drinking extra water. If people
eat natural poisons,they must go to the hospital right away to have their stomachs emptied.Which of the following statements is NOT true?
A:Food when poisoned can make people sick.
B:Food poisoning means death.
C:F0od poisoning comes in varieties.
D:Food poisoning can be serious,答案：B解析：该题目考查关于食物中毒的描述。通读全文，可知第一段对食物中毒做了一个简单的 介绍。由第一段第三句“食物中毒通常并不严重，但有些也是致命的”可知D选项表述与原文 一致，B选项“食物中毒就意味着死亡”太绝对，与原文表述不符。从该段第四、五句可知食物 中毒会有很多的症状，最常见的是发烧，由此可知A选项表述正确。从第二段第一句可知食物 中毒也有很多种类，因此C选项表述与原文一致。据此分析，表述错误的只有B选项，因此为正确答案。
根据题目中关键词symptoms迅速定位至第一段最后两句话“食物中毒的症状往往在吃 完食物数小时内就会出现、发烧是最常见的一个症状。”由此可知，A选项表述与原文不一致， C选项表述与原文相符。B、D选项未提及。因此止确答案为C。
该题目考查引起食物中毒的原因。通读全文可知第二段至第四段讨论了什么东西会 引起食物中毒——微生物、化学制品及一些含有天然毒素的植物和动物。C 、A、D兰个选项分 别与之对应。而由第五段“Food should be kept in a refrigerator to stop microorganisms from growing." 可知low temperature、不会导致food poisoning。因此正确答案为B。
根据题目可迅速定位到第五段，由文中的“肉类需彻底烹调以杀灭有毒的微生物。覆 盖有化学物质的食物食用前要清洗：最后，人们不应该吃野生蘑菇或其他野生食物……”可以 推测出D选项表述正确。而A选项表述太绝对，B、C选项则无细节支持。
通读全文可知该篇文章讨论了食物中毒的症状、原因及如何降低食物中毒的风险。由 第五段第一句和最后一段可推测出C选项表述与原文意思相符，D选项表述错误。由第四段 可知天然物质也会引起食物中毒，因此A选项与原文表述不一致。B选项文中未提及。据此 分析正确答案为C。第二篇 本文主要介绍了核辐射危害的严重性、潜伏性和长期性。 -
第16题：
细菌毒素中毒（bacterial exotoxin poisoning）
正确答案:病原菌污染食物后，其在食物中生长繁殖产生外毒素，外毒素随食物进入动物体内，使机体呈现中毒症状。这种由外毒素的作用引起的食物中毒称为细菌毒素中毒。 -
第17题：
细菌性食物中毒（bacterial food poisoning）
正确答案:因食物中含有病原菌或其毒素而引起机体中毒的现象，称为细菌性食物中毒。 -
第18题：
钐钴磁铁、钕铁硼磁铁、铝镍钴磁铁、铁氧体磁铁这四个磁铁根据磁力大小怎样排序？
正确答案:磁力大小排列为：钕铁硼磁铁、钐钴磁铁、铝镍钴磁铁、铁氧体磁铁。 -
第19题：
氧化钐
正确答案:2846901940 -
第20题：
名词解释题细菌性食物中毒（bacterial food poisoning）正确答案： 因食物中含有病原菌或其毒素而引起机体中毒的现象，称为细菌性食物中毒。解析： 暂无解析 -
第21题：
名词解释题地方性甲基汞中毒chronic methl-mercury poisoning正确答案： 是人群暴露于被贡污染的环境，主要是水体污染和由此导致的鱼贝类等食物的甲基汞污染，造成摄入者体内甲基汞蓄积并超过一定阈值所引起的神经系统损坏为主要表现的环境污染性疾病解析： 暂无解析 -
第22题：
单选题朱建华等提出了氧化还原分离铕液膜法，可自钐、铕、钆混合稀土中分离到纯度（）%的铕，回收率84.7%。A85
B87.6
C99.7
D100
正确答案： D解析： 暂无解析 -
第23题：
单选题Severe exposure to chlorine gas can be fatal. Chlorine gas is primarily a（）.Arespiratory irritant
Bskin burning agent
Cblood poisoning agent
Dnerve paralyzing irritant
正确答案： B解析： 暂无解析