Passage OneMark went to the neighborhood meeting after work. The area's city councilwoman (女议员) was leading a discussion about how the quality of life was decreasing. The neighborhood faced many problems. People were supposed to suggest solutions to the c
题目
Passage One
Mark went to the neighborhood meeting after work. The area's city councilwoman (女议员) was leading a discussion about how the quality of life was decreasing. The neighborhood faced many problems. People were supposed to suggest solutions to the councilwoman. It was too much for Mark. "The problems are too big," he thought. He turned to the man next to him and said, "I think this is a waste of my time. Nothing I could do would make a difference here."
On his way back, Mark saw a woman carrying a grocery hag and baby. She was trying to unlock her car, but she didn't have a free hand. As Mark got closer, her other child, a little boy, suddenly darted into the street. The woman tried to reach for him, but as she moved, her bag shifted and groceries started to fall out. Mark ran to take the boy's arm and led him back to his mother. Then he picked up the groceries while the woman smiled in relief. "Thanks!" she said. "You've got great timing (适时) !"
"Just being neighborly (友好的) ," Mark said. As he rode home, he glanced at the walls of the bus passed by. On one of them was "Small acts of kindness add up." Mark smiled and thought, "Maybe that's a good place to start."
31. In the first paragraph, Mark thought that______.
A. nobody was so able as to solve these problems
B. many people were too selfish to think about others
C. he was not in the position to solve such problems
D. he already had more than enough work to do
相似考题
更多“Passage One Mark went to the neighborhood meeting after work. The area's city councilwom ”相关问题
-
第1题：
How many books do you have? I have ______ book .That's ______ English book.A、a,an
B、a,one
C、on,an
D、one,one
参考答案： A
-
第2题：
4、基于教学视频中的供应商零件数据库，能正确查询出“没有使用天津供应商生产的红色零件的工程号”的关系代数表达式是（）。
A．πJNO(J) - πJNO (σCITY='天津' (S) ∞SPJ ∞σCOLOR='红' (P))
B．πJNO (σCITY≠'天津' (S) ∞SPJ ∞σCOLOR≠'红' (P))
C．πJNO(J) - πJNO (σCITY='天津'∧COLOR='红'(S∞SPJ ∞P))
D．πJNO (σCITY≠'天津' ∧COLOR≠'红' (S∞SPJ ∞P))
πPNAME,COLOR,WEIGHT ((ΠJNO,PNO(SPJ) ÷πJNO(J)) ∞P);πPNAME,COLOR,WEIGHT,JNO,PNO(SPJ∞P) ÷πJNO(J) -
第3题：
以下程序的执行结果是哪一个选项？ dict_mark = {'Wang': 'C', 'Li': 'B', 'Ma': 'A'} s = '' for c in dict_mark.values（): s += c print（s)
A．'B'
B．'ABC'
C．'CBA'
D．'C'
123 -
第4题：
建立一个供应商、零件数据库。其中“供应商”表S(Sno，Shame，Zip，City)分别表示：供应商代码、供应商名、供应商邮编、供应商所在城市，其函数依赖为：Sno→(Sname，Zip, City)，Zip→City。“供应商”表S属于(16)。
A．1NF
B．2NF
C．3NF
D．BCNF
正确答案：B
解析：本题考查范式的基础知识。“供应商”表S属于2NF，因为表S的主键是Sno，非主属性Sname，Zip，City不存在对键的部分函数依赖。但是，当2NF消除了非主属性对码的传递函数依赖，则称为3NF。“供应商”表S不属于3NF，因为存在传递依赖，即Sno→Zip，Zip→City。所以正确的答案是B。 -
第5题：
基于教学视频中的供应商零件数据库，能正确查询出“没有使用天津供应商生产的红色零件的工程号”的关系代数表达式是（）。
A．πJNO(J) - πJNO (σCITY='天津' (S) ∞SPJ ∞σCOLOR='红' (P))
B．πJNO (σCITY≠'天津' (S) ∞SPJ ∞σCOLOR≠'红' (P))
C．πJNO(J) - πJNO (σCITY='天津'∧COLOR='红'(S∞SPJ ∞P))
D．πJNO (σCITY≠'天津' ∧COLOR≠'红' (S∞SPJ ∞P))
πPNAME,COLOR,WEIGHT ((ΠJNO,PNO(SPJ) ÷πJNO(J)) ∞P);πPNAME,COLOR,WEIGHT,JNO,PNO(SPJ∞P) ÷πJNO(J) -
第6题：
【单选题】以下程序段中存在错误的是（） 。
A．#define array_size 100 int array1[array_size];
B．#define PI 3.14159 #define S(r) PI*(r)*(r) „ area=S(3.2);
C．#define PI 3.14159 #define S(r) PI*(r)*(r) „ area=S(a+b);
D．#define PI 3.14159 #define S(r) PI*(r)*(r) „ area=S(a);
#define PI 3.14159; #define S(r) PI*(r)*(r) ; ...... area=S(a);