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【简答题】
通用栏板式货箱尺寸的主要因素是(),其次是(),第三个因素是()。
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举一反三
【简答题】传统集合的并、交、差运算施加于两个关系时,这两个关系的____必须相等。
【简答题】传统的集合“并、差、交”运算施加于两个关系时,这两个关系必须 。
【简答题】Professor Simpson talked to the students about the _________ of scientific laws from observation.(derive)
【单选题】The professor ____ will be here tomorrow.
A.
is talked about
B.
talking about
C.
to be talked about
D.
being talked about
【简答题】Resident advisor/ TA/ Professor Giving you advice on how to _____________.
【单选题】Yates tries to lower Simpson down the mountain, but __________.
A.
he suddenly loses his strength
B.
he cannot communicate with Simpson
C.
Simpson hears nothing from Yates
D.
Simpson's injuries stop him from climbing up the rope or communicating with Yates
【简答题】传统的集合运算“并、交、差”运算施加于两个关系时,这两个关系必须 。
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