【单选题】【消耗次数：1】
提高压杆稳定性，应尽量（）惯性半径。
①
增加
②
减少
③
不变
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相关题目
【单选题】
下列结论中正确的是（ ）。（1）为保证构件能正常工作，应尽量提高构件的强度（2）为保证构件能正常工作，应尽量提高构件的刚度（3）为保证构件能正常工作，应尽量提高构件的稳定性（4）为保证构件能正常工作，应尽量提高构件的强度、刚度和稳定性。
①
全部错误
②
（4）
③
全部正确
④
（1），（2），（3）
随机题目
【单选题】
Our factory has ____ for years.
①
many fire equipments
②
much equipment of fire
③
many equipments of fire
④
much fire equipment
【单选题】
The city ____ its birth-rate by almost 60% in the past 20 years.
①
cuts
②
has been cut
③
cut
④
has cut
【单选题】
?There are altogether fifty students in our class, twenty____ are boys. ?
①
of them ?
②
of those ?
③
of whom ?
④
of whose ?
【单选题】
They have built a____.?
①
bridge hundred meters ?
②
bridge a hundred meters long?
③
a hundred meters long bridge ?
④
bridge hundred meters long?
【单选题】
—You’ve given us a wonderful Chinese dinner, Mrs Huang.—____.
①
Oh, I’m afraid I didn’t cook well
②
I’m glad you enjoyed it
③
It’s not necessary for you to say so
④
It doesn’t matter
【单选题】
2. Everyone of them ____ tired and wanted a good rest.
①
seems
②
is seemed
③
was seemed
④
seemed
【单选题】
10. I am not a violent man ____, but these insults were more than I could bear.
①
by birth
②
with birth
③
by nature
④
with nature
【单选题】
The old woman can’t ____ the way to the post office.
①
find out
②
find
③
look for
④
look
【判断题】
<img src=http://huaweicloudobs.ahjxjy.cn/5c863bf95168c08bc833da7680078940.png/>
①
正确
②
错误