Passage FourMillions of stars are traveling about in space. A few form. groups which journey together, but most of them travel alone. And they travel through a universe so large that one star seldom comes near to another.We believe, however, that some two
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Passage Four
Millions of stars are traveling about in space. A few form. groups which journey together, but most of them travel alone. And they travel through a universe so large that one star seldom comes near to another.
We believe, however, that some two thousand million years ago, another star wandering through space, happened to come near our sun. Just as the sun and the moon raise tides on the earth, so this star must have raised tides on the surface of the sun. But they were very different from the small tides that are raised in our oceans; a large tidal wave' must have travelled over the surface of the sun, at last forming a mountain so high that we cannot imagine it. As the cause of the disturbance (动荡) came nearer, so the mountain rose higher and higher. And before the star began to move away again, its tidal pull had become so powerful that this mountain was torn to pieces and threw off small parts of itself into space. These small pieces have been going round the sun ever since. They are the planets (行星).
46. Millions of stars are______.
A. following a regular path in space
B. always travelling together
C. seldom wandering about in the universe
D. moving about without a fixed course
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第1题：
有如下SQL SELECT语句SELECT*FORM. 工资表 WHERE 基本工资<=2000 AND 基本工资>=1500下列与该语有如下SQL SELECT语句 SELECT*FORM. 工资表 WHERE 基本工资＜＝2000 AND 基本工资＞＝1500 下列与该语句等价的
A．SELECT*FORM. 工资表 WHERE 基本工资 BETWEEN 1500 AND 2000
B．SELECT*FORM. 工资表 WHERE 基本工资 BETWEEN 2000 AND 1500
C．SELECT*FORM. 工资表 WHERE 基本工资 FROM1500 INTO 2000
D．SELECT*FORM. 工资表 WHERE 基本工资 FROM 2000 INTO 1500
正确答案：A
解析：SQL查询语句中特殊运算BE- TWEEN．．．AND．．，的含义为“…和…之间”。BETWEEN…AND．．．是SQL查询语句中的一个特殊运算符，意思为“…和…之间”，相当与逻辑运算中的(A＞＝AND＞＝8，其中A＞B)，选项 B)中数值放置错误，选项 -
第2题：
有下列SQL SELECT语句： SELECT * FORM. 成绩表 WHERE 物理 BETWEEN 80 AND 90 下列与该语句等价的( )。
A．SELECT * FORM. 成绩表 WHERE 物理＜=90 AND 物理 ＞=80
B．SELECT * FORM. 成绩表 WHERE 物理 ＜90 AND 物理＞80
C．SELECT * FORM. 成绩表 WHERE 物理＞=90 AND 物理＜=80
D．SELECT * FORM. 成绩表 WHERE 物理＞90 AND 物理＜80
正确答案：A
解析：BETWEEN..AND...是SQL查询语句中的一个特殊运算符，意思为“...和...之间”，相当与逻辑与运算中的(A＞=AND＞=B，其中A＞B)。 -
第3题：
The city has__________population of twoA.a；millions
B.a；million
C.!；million
D./；millions答案：B解析：考查名词可数性和量词的用法。hundred，million，thousand等数量词前面有具体数字时用单数，故排除A、D两项；又因population为可数名词，且has a?population of．．是表示“有……人口”的结构，故选B项。 -
第4题：
What is the correct syntax for applying node－specific parameters to each node in a chassis cluster?()A. set apply-groups node$
B. set apply-groups (node)
C. set apply-groups $(node)
D. set apply-groups (node)all
参考答案：C
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第5题：
材料：
When expenses are incurred the liability under this insurance shall not exceed the proportion of such expenses that the amount insured hereunder bears to the value of the Vessel as stated herein，or to the sound value of the Vessel at the time of the occurrence giving rise to the expenditure if the sound value exceeds that value．Where the Underwriters have admitted a claim for total loss and property insured by this insurance is saved，the foregoing provisions shall not apply unless the expenses of suing and labouring exceed the value of such property saved and then shall apply only to the amount of the expenses which is in excess of such value．
When a claim for total loss of the Vessel is admitted under this insurance and expenses have been reasonably incurred in saving or attempting to save the Vessel and other property and there are no proceeds，or the expenses exceed the proceeds，then this insurance shall bear its pro rata share of such proportion of the expenses，or of the expenses in excess of the proceeds，as the case may be，as may reasonably be regarded as having been incurred in respect of the Vessel，but if the Vessel be insured for less than its sound value at the time of the occurrence giving rise to the expenditure，the amount recoverable under this clause shall be reduced in proportion to the under-insurance．
问题：
Of the following，_______ only is correct．
A.The stated value of the vessel is always higher than its ensured value
B.The sound value of the vessel at the time of the occurrence is always higher than its ensured value
C.The sound value of the vessel at the time of the occurrence is always higher than its stated value
D.The sound value of the vessel at the time of the occurrence is always higher than its saved value
Assuming the sound value of the vessel at the time of accident is $10 millions，the insured value $9 millions，the stated value $8 millions，the expense incurred $2 millions，the liability under this insurance is likely to be _______．A.$2.0 millions
B.$1.8 millions
C.$1.6 millions
D.$1.4 millions
Under afore-said conditions，assuming the expense of suing and labouring is $3 millions，the proceeds $2 million，and the Underwriter has admitted a claim for total loss，the liability under this insurance is likely to be _______．A.$0.9 million
B.$0.8 million
C.$1.0 million
D.$2.0 millions
Under previous conditions，assuming the saved value is $1 million，the expense of suing and labouring $3 millions，and the Underwriter has admitted a claim for total loss，the liability under this insurance is likely to be _______．A.$2.0 millions
B.$1.8 millions
C.$1.6 millions
D.$1.4 millions
请帮忙给出每个问题的正确答案和分析，谢谢！
问题 1 答案解析：D
问题 2 答案解析：B
问题 3 答案解析：A
问题 4 答案解析：B
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第6题：
【单选题】question 2
A．7.4 millions.
B．5.6 millions.
C．2.8 millions.
D．1.8 millions.
C 解析：短文说，今年假期网上消费估计达250亿美元，比去年增长25%，则去年为20亿美元，故答案是C。