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【简答题】
Mg 属于 晶格;纯铁在912°C以下的晶格类型为 。
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举一反三
【单选题】Can you find _______ in today's newspaper? [ ]
A.
something important
B.
important something
C.
anything important
D.
important anything
【单选题】﹣Can I finish my homework tomorrow? ﹣__________. You must finish it today?
A.
Yes, you can
B.
No, you can’t
C.
No, you needn’t
【简答题】一组彩灯由“欢迎你 ”3 个字组成,要求 3 个字依次各亮 3s ,全熄 1s 后全亮 3s ,在全熄 1s ,重复上述过程。用步进顺控编程法编制控制程序。
【单选题】Which of the following can't you find on Mars today?
A.
atomsphere
B.
oceans
C.
ice
D.
sand
【单选题】When you go to the airport today, you will ______.
A.
strain to find middle aged men in a jacket and tie.
B.
strain to find young people in their undershirt.
C.
easily find men over 60 wearing flip-flops.
D.
easily find a man wearing a jacket and tie.
【单选题】. If you compare food costs today ______ of a year ago, you will find the difference.
A.
to that
B.
to them
C.
with that
D.
with those
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