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【单选题】
下列（）命令会启动rpm查询。A.
rpm -I
B.
rpm -r
C.
rpm -q
D.
rpm -a
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反馈参考答案：
举一反三
【简答题】根据已知,写出螺纹的规定标记为 ( )。 注意:螺纹规定标记可以省略标注的情况有:1)粗牙螺距; 2)线数不是直接标注出来,都是通过标注螺距和导程,计算倍数得出,如果线数是1,不标注导程,则粗牙就不标注螺距,细牙就只标注螺距. 3)右旋; 4)中顶径公差代号6g
【多选题】当客人想要的桌子已经没有了,我们可以怎么说呢?
A.
It was reserved this afternoon
B.
I’m sorry,that table is already reserved.
C.
We’ll call you when we have a vacancy.
D.
How about this table?
E.
There’s a table for four over there. Would you like it?
【单选题】According to the third paragraph, which is true about water?
A.
There is no such thing as water shortage in the world at all.
B.
It can be recycled in the form. of rain, snow or evaporation.
C.
Less than a tenth of water is extracted for human use each year.
D.
Only what falls as rain and snow can be made full use of.
【单选题】Mike resembles his mother in appearance _____ his personality follows his father's.
A.
who
B.
which
C.
while
D.
where
【简答题】When a negotiator arrives at the scene of a hostage cr, a first thing is to know ______.
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