当齿轮箱高速轴与发电机同心度满足要求时,可以直接联结,不需弹性联轴器。()

题型:判断题

问题:

当齿轮箱高速轴与发电机同心度满足要求时,可以直接联结,不需弹性联轴器。()

考点:材料能源行业技能考试风电运检风电运检题库
题型:判断题

In western countries, more and more foods have additives in them. What are additives? Additives are chemicals which are put into foods to give them color and taste, to stop them going bad and so on. But doctors say that some additives can be very bad for our health.

Now let’s look at how additives can be bad for our health. For example, a little English girl called Sally Jones is two years old and quite ordinary (普通的). But when she was younger, she never went to sleep at night. She never got tired. Her parents were very worried. Finally, Sally’s parents took her to a special doctor.

The doctor said that she must never eat food with additives in it. He was sure that the additives had a very bad effect on her body, and made her too active. He was quite correct. As soon as Sally started to eat foods with no additives, she began to sleep well at night.

Now she is the same as other little girls, except that she can’t eat many foods that other children love, such as ice-creams, because they have additives in them.

根据短文内容,回答下列问题。

小题1:What’s the Chinese meaning of the word “additive”?

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小题2:What are the functions (功能) of the additives?

__________________________________________________

小题3:Did Sally like sleeping at night before she went to see the doctor?

__________________________________________________

小题4:What happened to Sally when she stopped eating the foods with additives?

__________________________________________________

小题5:Why can’t Sally eat ice-creams?

题型:判断题

水利改革发展应抓紧解决( )缺水问题。

A.产业性
B.工程性
C.源头性
D.资源性

题型:判断题

粉末加水振摇可产生持久性泡沫的药材为()

A.川芎

B.防风

C.柴胡

D.白芷

E.当归

题型:判断题
北京奥委会接受专家的建议,大量采用对环境有益的新技术.如奥运会场馆周围80%~90%的路灯将利用太阳能发电技术、奥运会90%的洗浴热水将采用全玻真空太阳能集热技术.太阳能的产生是由于太阳内部高温高压条件下的热核聚变反应形成的,其核反应方程是(  )

A.+

B.++

C.+++10

D.+

题型:判断题

在多媒体技术中,声音的三要素为音调、音色和音强,其中音色是由混入基音的()来决定的。

A.响度

B.泛音

C.高音

D.波形声音

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