【单选题】【消耗次数：1】
下列零件中，（）属于专用零件。
①
螺钉
②
螺母
③
起重吊钩
④
平键
参考答案：
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相关题目
【多选题】
零件图的尺寸（）
①
要求能确定零件各部分形状大小
②
要求尽量简洁
③
要求能满足制造、工艺、检验、装配等方面的要求
④
要求能确定零件各部分相对位置
⑤
不需满足制造、工艺、检验、装配等方面的要求
随机题目
【单选题】
Every morning, Tim often sees groups of middle-aged women _______ in the square.
①
dance
②
to dance
③
dances
④
danced
【单选题】
We decided to _______ to help the sick children with their homework.
①
go to the hospital
②
went to a hospital
③
going to a hospital
④
went to the hospital
【单选题】
You should _______ your shoes before you enter the dancing room.
①
get off
②
put off
③
take off
④
fall off
【单选题】
There are ________ people in front of the cinema gate so we have to wait ________ time to get into the cinema.
①
too much; much too
②
too many; too much
③
much too; too much
④
too much; too many
【单选题】
There are four pairs of socks to ______, but the woman doesn’t know ______ to buy.
①
choose from; which
②
choose from; what
③
choose; which
④
choose ;what
【单选题】
Last month Miss Han ______ a doctor.
①
married with
②
married to
③
was married with
④
got married to
【单选题】
Light waves and heart waves are all electromagnetic. ______ are radio waves.
①
Some
②
Such
③
As
④
So
【单选题】
Ancient Chang’an was seven times _____ the size of today’s Xi’an city.
①
/
②
as much as
③
that of
④
of
【单选题】
How difficult it is ______ the modern world without oil.
①
imagining
②
imagined
③
to imagine
④
having imagined
【单选题】
The exchange of goodwill mission greatly ______ a better understanding between the two countries.
①
carries out
②
brings around
③
breaks out
④
contributes to