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问题 单项选择题

水平放置的渐扩管如图所示，如忽略水头损失，断面形心点的压强有以下关系（）。

A．p1＞p2

B．p1=p2

C．p1＜p2

D．不定

答案

参考答案：C

解析：

 根据能量方程，不计损失则流速小的地方测压管水头大，在水平管中测压管水头大的断面压强大。

单项选择题

A first-time mother-to-be is in the labor room, her husband at her bedside. The client states that her contractions began 6 hours ago. Which of the following assessment findings would confirm that the client is in true labor ？（）

A．Discomfort located chiefly in the abdomen.

B．Constant intensity of contractions.

C．Contractions occurring every 10 to 15 minutes and lasting 20 to 30 seconds.

D．Cervix that is 100% effaced and 2 cm dilated.
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判断题

律师应聘担任省人民政府法律顾问，与聘方之间显然是隶属关系。
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