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【判断题】
如点火提前角过大，混合气的燃烧在压缩行程中进行，气缸内的燃烧气体压力急剧上升，而且会产生较大的爆燃声音，会给正在上行的活塞造成一短时间的巨大推力，使发动机功率上升。A.
正确
B.
错误
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举一反三
【简答题】关于东京有什么有趣的吗?
【单选题】Don't worry! You have time to finish the task. [ ]
A.
a plenty of
B.
a lots of
C.
lot of
D.
plenty of
【单选题】Don’t be angry with him；after all，he’s only a child.Besides，he didn’t make the mistake ________. [ ]
A.
in turn
B.
on purpose
C.
by accident
D.
in total
【单选题】We need to eat plenty of rice and bread every day. Here the underlined part means ________. [ ]
A.
many
B.
much
C.
some
D.
a little
【单选题】Don't be too hard on the kid.______, he is only a boy of twelve.
A.
Above all
B.
Of all
C.
All of all
D.
After all
【单选题】He has lived here for about 20 years ,so he has friends here.
A.
most of
B.
lot of
C.
plenty of
D.
many of
【单选题】Don’t ______ a person only because he has failed in an examination.
A.
look up
B.
look down
C.
look down on
D.
look up to
【单选题】—Does he play sports? —No, he _____. He only watches them _____ TV. [ ]
A.
doesn't; in
B.
doesn't; on
C.
does; in
D.
does; on
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