水平放置的渐扩管，若忽略水头损失，断面形心点的压强，沿流动方

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问题单项选择题

水平放置的渐扩管，若忽略水头损失，断面形心点的压强，沿流动方向有以下关系( )。

A．p₁＞p₂

B．p₁=p₂

C．p₁＜p₂

D．不确定

答案

参考答案：C

解析：
[提示] 因为z₁=z₂，u₁＞u₂，由伯努利方程可知p₁＜p₂。

填空题

根据首字母或所给中文提示，写出正确的单词完成句子。

1.The experiment c___________ by Pro. Smith proved to be a great success.

2. The naughty boy was punished because he didn't o______ the school rule.

3. Tom has got divorced from Jill,but as her ex-husband,he still have a____to their only child at weekends.

4. The young man showed great _______ (同情) to the disabled.

5. The killer whales helped the whalers catch the baleen whales on their _________(每年度的)migration..

单项选择题

面色苍白或萎黄，头晕目眩，四肢倦怠，气短懒言，心悸怔忡，食欲不振，舌质淡，苔薄白，脉虚细者，治宜选用

A．归脾汤

B．八珍汤　　

C．炙甘草汤　

D．四物汤

E．四君子汤