x和y都是double型变量,x的初值为4.0,Y的初值为2.0,则表达式pow(y

题型:填空题

问题:

x和y都是double型变量,x的初值为4.0,Y的初值为2.0,则表达式pow(y, labs(x))的值为______。

考点:计算机等级考试C语言二级C语言笔试
题型:填空题

阅读理解。

    We were standing at the top of a church not far from my home. I didn't know why.

    "Look down," Father said. I tried and saw the square in the center of the village. And I saw the streets to

the square. "See, Elsa," Father said. "There is more than one way to the square. If you can't get where you

want to go by one road, try another."

    Earlier that day, I asked Mother to do something about what we had for lunch at school. But she didn't

think the food was as bad as I said. When I turned to Father for help, he brought me to the church. 

    At school the next day, I filled a bottle with the soup for our lunch and took it home. I told the cook to

pour the soup in a plate and bring it to Mother. She drank it and cried out, "What's the matter with the soup

today?" I at once told her what I had done, and Mother said that she would take up the matter of lunches at

school the next day.

    Now I really understood why Father had taken me to the church. I began to work as a fashion designer

two years ago. I wouldn't stop working until I tried every day to my goal.

1. The writer's father took her to the church to           . [ ]

A. play some games

B. see the square

C. show her the way

D. give her a lesson

2. Elsa really wanted her mother to           . [ ]

A. cook something better for her lunch

B. have lunch with her at school

C. talk the matter over with the teachers

D. tell the cook to work harder

3. Why did Elsa's mother agree to do something about the matter? [ ]

A. Because the writer tried a better way to her goal.

B. Because the girl brought something home.

C. Because she thought what the cook said was true.

D. Because Elsa's father gave her some help.

4. What Elsa's father said means?[ ]

A. one can reach the square in many ways.

B. never stop trying to get to your goal.

C. it's difficult to talk to Elsa's mother.

D. you can't get what you want easily.

5. When           , the writer really understood what his father had said. [ ]

A. she saw the streets to the square

B. she had the idea of bringing the soup home

C. she tried every way to her goal

D. she began her own life as a fashion designer

题型:填空题

功能性收缩期杂音最常见部位是

A.二尖瓣区
B.主动脉瓣区
C.主动脉瓣第二听诊区
D.三尖瓣区
E.肺动脉瓣区

题型:填空题

()是规定债券发行人和债权 * * 利和义务的文件。

A.发行合同书

B.责任书

C.信托证书

D.责任保证书

题型:填空题

调车长试验无线调车设备,试验完毕后保留(),呼叫:电台试验完毕,准备作业。

A.停车信号

B.启动信号

C.推进信号

D.连结信号

题型:填空题

男,68岁,阵发性胸闷3年,持续加重6小时后突发意识丧失。查体:BP40/20mmHg,双肺呼吸音清。心率32次/分,律齐,各瓣膜区未闻及杂音。血清肌钙蛋白水平增高。

最可能的心律失常是()

A.心房颤动

B.心室颤动

C.室性心动过速

D.二度房室传导阻滞

E.三度房室传导阻滞

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