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【判断题】
以人工调控植物生长为手段，以社会经济效益为目标的植物生长过程，称为植物的生产过程A.
正确
B.
错误
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举一反三
【简答题】汽油机燃料供给系一般由 、 、 、 等装置组成
【单选题】It took me ______ to finish my homework. [ ]
A.
a half and two hour
B.
two hour and a half
C.
two and a half hour
D.
two and a half hours
【单选题】It took my father half an hour to finish ____ my bike.
A.
repairing
B.
repair
C.
to repair
D.
repaired
【多选题】half an hour, my parents, back to the hotel, finally find their way
A.
It took my parents half an hour to finally find their way back to the hotel.
B.
It took half an hour of my parents to finally find their way back to the hotel.
C.
It took half an hour for my parents to finally find their way back to the hotel.
【简答题】汽油机燃料供给系一般由 、 、 、 等装置组成。过量空气系数α>1,则此混合气称为 混合气;当α<0.4时,混合气 ,火焰不能传播,发动机熄火,此α值称为 。_________________________________________________________________...
【单选题】__________ is often the case with her, my mother talked about my study for at least half an hour nonstop before she drove me to school yesterday．
A.
As
B.
Which
C.
What
D.
That
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