下列选项中,不属于石油化工通用机械的是()。 A.石油钻采机械 B.炼油机械 C.播

题型:多项选择题

问题:

下列选项中,不属于石油化工通用机械的是()。

A.石油钻采机械

B.炼油机械

C.播种机

D.收割机械

考点:水利工程安全考试机械安全技术机械安全技术题库
题型:多项选择题

一般SH型离心泵从驱动端看为()方向旋转。

A、正

B、反

C、顺时针

D、逆时针

题型:多项选择题

以下关于单位设置叙述错误的是()。

A.显示单位和系统单位可以同时影响模型的尺寸大小。

B.显示[单位设置(UnitsSetup)]可以同时影响创建和修改中的单位。

C.主栅格单位随显示单位设置更改而更改。

D.在[单位设置(UnitsSetup)]中不可以设置在捕捉时所用的单位。

题型:多项选择题

甲醇蒸馏瓶与冷凝管的连接要求?

题型:多项选择题

其他条件相同,船舶重心高度较大可使剩余动稳性值()。

A.增大

B.减小

C.不变

D.以上均有可能

题型:多项选择题

Expressing gratitude is an important form of good manners. Nowadays more and more people in China have found it’ s high time to (16) a thankful heart for the young.

Everyone likes to get praised and appreciated. Gratitude is the greatest of virtues, which lets others smile and makes the world more beautiful. You just need several minutes to write down a thank-you note, but it brings much joy to the (17) .

We live in a society where we enjoy the different services of others. But (18) of them should be taken for granted.

Gratitude is also a kind of (19) in life. In developing gratitude for every moment--for the simple joys and even for the (20) times--we come to truly enjoy and appreciate life. Then we are able to see the (21) that surrounds us.

Try to write a thank-you letter to your parents for working hard to (22) you a happy life.

Be grateful to your teachers because of their (23) with your studies and character building.

Say thanks to your friends who (24) both your happiness and sorrow. We are sure it will bring them much joy and add (25) into your own life as well.

17()

A.doer 

B.receiver 

C.performer 

D.speaker

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