已知平面无旋流动的速度势φ=y,则流函数为()。 A.A B.B C.C D.D

题型:单项选择题

问题:

已知平面无旋流动的速度势φ=y,则流函数为()。

A.A

B.B

C.C

D.D

考点:注册公用设备工程师暖通空调与动力专业基础勘察设计注册公用设备工程师暖通空调与动力专业基础
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乙炔与锌产生的碳化物有爆炸危险,因此,乙炔管道不应采用镀锌钢管。( )

题型:单项选择题

医疗活动中最基本、最重要的人际关系是()

A.医患关系

B.医疗团体与社会的关系

C.医护关系

D.医际关系

E.护患关系

题型:单项选择题

阅读理解。

     根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余

选项.

     In a national spelling contest in America, an 11-year-old girl was asked to spell a certain word. But

with her soft voice the judges were not sure if she spelled the word with the letter A or E.   1    At that

time, the girl knew she had misspelled the word. But instead of lying and telling the judges she had said

the correct letter, she told the truth that she had said the wrong letter.   2   .

     As the girl walked off the stage, the entire audience stood on their feet clapping to applaud her

honesty. Later, dozens of newspaper wrote about this 11-year-old girl's courage and honesty, even

when it cost her the contest.    3  

     Probably the biggest test of our character and honesty is what we would do if we knew we would

never get caught.

     This young girl could easily have lied, and nobody would have known it but her. But that's just it:

She would know she did wrong.      4   

     This young girl was strong and smart enough to prize her own conscience and character more than

the prize from a spelling contest. Her respect for herself was more important than any respect others

might give her for winning a contest. She knew she would have to live with herself and the choice she

made at the moment. 

     5   

A. So she won the contest.

B. As a result, she lost the contest.

C. The judges wanted to give her another chance.

D. It's been said, "If you cheat, you make yourself cheap."

E. It's so true that the choices you make today make what you are tomorrow.

F. They talked it over and finally decided to simply ask her what she had said.

G. But the fact is that she won the biggest contest that day: the contest of her character.

题型:单项选择题

要维护车站秩序,随时清理站内()。

A.其他部门人员

B.滞留人员

C.上下车旅客

D.工作人员

题型:单项选择题

在现代化支付系统运用的电子数据处理设备及通讯系统出现技术性故障或操作失误时,使整个支付系统运行陷入瘫痪的潜在风险属于()。

A、信用风险

B、流动性风险

C、法律风险

D、操作风险

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