一定量的某理想气体,节流膨胀过程的△U( )、△S( )、△G( )。 A.)

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问题:

一定量的某理想气体,节流膨胀过程的△U( )、△S( )、△G( )。

A.)=0 (C

考点:注册化工工程师注册化工工程师
题型:多项选择题

任务型阅读。根据短文内容完成句子。

     Newspapers and televisions often present the bad side of life to us. Life is, however, not so bad. The

world is, on the whole, full of kind people and friendly strangers. Recently, a tourist in France was given

a bunch of roses by a gardener as a token (标记) of friendship. In California, when a tourist's car was

badly damaged, a man who came by offered to tow (拖) the car to a repair shop. The repairman was so

nice that he not only charged (收费) the tourist very little, but lent him a car to drive while he was repairing

the tourist's car. We can say that if you are friendly and expect to meet friendly people, you will most

certainly meet them.

1. In California, ______ let the ______ use his own car when his car was damaged.

2. We get a wrong impression and the bad side of life from ______.

3. ______ is taken from the garden as a token of ______.

4. We can be sure that being ______ brings you friendship.

5. This passage mainly tells us that the world ______.

题型:多项选择题
下列图形中,不一定为菱形的是(  )
A.两条对角线互相垂直平分的四边形
B.四条边都相等的四边形
C.有一条对角线平分一个内角的平行四边形
D.用两个边长相等的等边三角形拼成的图形
题型:多项选择题

船舶采用舵杆中心线在舵叶之内的舵,其目的是为了()

A.减小阻力

B.增加舵面积

C.减小舵机功率

D.提高舵效

题型:多项选择题

功率因数的定义是()的比值,功率因数Cosø=P/S的物理意义是供电线路上的电压与电流的相位差的余弦。

A.视在功率与无功功率

B.有功功率与视在功率

C.有功功率与无功功率

D.不确定

题型:多项选择题

下列关于施工质量检测试验的说法中,正确的是( )。

A.是施工质量控制的重要手段

B.是贯彻执行建设法律法规强制性条文的重要内容

C.工程检测试验必须委托有相应资质的检测机构进行

D.必须达到国际标准化组织的要求

E.必须贯彻执行国家有关见证取样送检的规定

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