机组中心线与旋转中心线是同一条线。

题型:判断题

问题:

机组中心线与旋转中心线是同一条线。

考点:水轮机调速器机械检修工水轮机调速器机械检修工(高级)水轮机调速器机械检修工(高级)题库
题型:判断题

在匀强电场中将一个带电量为q、质量为m的小球由静止释放,小球的运动轨迹为一直线,此直线与竖直方向的夹角为θ,则匀强电场E的最小值是(  )

A.

mg
q

B.

mg•sinθ
q

C.

mg•cosθ
q

D.

mg•tanθ
q

题型:判断题

Which do you think is the best way to keep healthy?

With the development of the society, people no longer worry about where their next meal comes from as they did in the old days. They become more and more concerned about their health problem. Different people come up with different views: eating green food, doing outdoor exercises or going to hospital for medical treatment frequently. As far as I am concerned, the best way to keep healthy is to develop a good quality of psychology(心理).

According to some surveys, nowadays, most patients are not physically sick but mentally(精神上) ill. They feel the burden on their shoulders is much heavier than others, so they can’t step out of the shadow of depression and sadness. They need to release their spirit to the nature.

Besides, if you have developed a good quality of psychology, you’ll become more sociable and thus more willing to play your part in the society. Joining in some keep-fit clubs or attending some travel agency, which by themselves are various versions of physical exercise, will benefit you a lot.

As a poem says, youth is not a period of time; it’s a state of mind. Everybody wants to keep young at heart because youth is a symbol for endless energy and passion for living.

Keep a good quality of mind, or keep a sense of humour, even if you are 80, and you’ll never be old.

小题1:According to the passage, in the old days, what people cared most might be _____.

A.food

B.exercising

C.clothing

D.health小题2:According to the writer, the best way to keep healthy is to _____.

A.have meals regularly

B.do outdoor exercises

C.go to hospital frequently

D.keep psychological health小题3:The most probable reason for patients who are mentally ill might be ____.

A.burden

B.depression

C.sadness

D.spirit小题4:The best way to develop a good quality of psychology might be ____.

A.taking social responsibility

B.exercising in a keep-fit club

C.going on journeys

D.taking physical exercise小题5:The key point to keep young is to _____.

A.keep exercising

B.keep a young heart

C.keep humourous

D.keep a proper diet

题型:判断题

动态造词的规则中正确的表达是()。

A.个人词库内允许N个字以内的任何词语被添加为新词。

B.个人词库中不能有同音词。

C.个人词库中的词语如果与系统词库的词语同音,自动优先上屏。

D.个人词库中的词语在记录时可以使用略码。

题型:判断题

部门预算中的“部门”,仅限定于( )。

A.一级预算单位

B.二级顶算单位

C.三级顶算单位

D.所有顶算单位

题型:判断题

预付费全球通号码充值了300元,有效期是()

A、360天

B、没有有效期

C、180天

D、90天

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