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【多选题】
以下对表面点火和爆燃的关系描述正确的是 ( )
A.
是两种不正常燃烧现象。
B.
爆燃发生时常有压力冲击波的产生。
C.
二者之间存在着某种相互促进的关系 。
D.
爆燃能有效抑制表面点火现象的发生。
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参考答案:
举一反三
【单选题】At the age of fourteen, Maggie went to a _______ girls school along with her sister。
A.
near
B.
nearby
C.
close
D.
neighbor
【单选题】At the age of fourteen , Betty went to a _____ girls’ school along with her sister .
A.
Near
B.
nearby
C.
close
D.
neighbor
【多选题】vi 编辑器下,要从命令模式进入末行模式,需要按下什么键( )
A.
:
B.
A
C.
/
D.
Esc
【单选题】Girls in our age shouldn ’ t _______ like an adult( 成年人 ).
A.
put up
B.
dress up
C.
get up
【单选题】One Way for the girls to thrive in the age of pressure is to ______.
A.
develop intangible ideas.
B.
set touchable goals.
C.
forget about their stress.
D.
talk with their parents.
【单选题】______ fun it 's to be with girls of my age in the summer course in Britain! [     ]
A.
How
B.
What
C.
What a
【判断题】当喷嘴高度小于 12 或 15mm 时,叶端损失增大,使得喷嘴的损失急剧增加。
A.
正确
B.
错误
【判断题】如果消费者预期鞋的价格上升,今天鞋的需求增加。
A.
正确
B.
错误
【单选题】Our class won the girls' relay race in our school's sports meeting.- ____________
A.
That's right.
B.
Thanks a lot.
C.
Congratulations!
D.
It's a pleasure.
【单选题】依据GMP ,生产工艺最大变更应该经过
A.
确认
B.
验证
C.
审核
D.
复核
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