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搜题
【判断题】
微生物在生命活动中需要的能量主要是通过生物氧化而获得。
A.
正确
B.
错误
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举一反三
【单选题】At last the policemen used tear gas to ______ the demonstrators.
A.
disperse
B.
dispatch
C.
disappear
D.
vanish
【单选题】听力原文:W: There must be a thunderstorm in some place, because the picture isn't very sharp and the sound isn't clear. M: I think you are right. They said on the radio last night that a storm was coming ...
A.
Looking at the photos.
B.
Listening to the radio.
C.
Watching television.
【单选题】The ______ of the picture on our television isn't very good. [     ]
A.
qualities
B.
quantity
C.
quantities
D.
quality
【多选题】关于N52发动机装备的三级可变DISA,下列描述正确的是()
A.
DISA风门采用真空控制
B.
DISA风门采用电动控制
C.
在发动机转速较低状态,两个DISA风门都处于关闭状态
D.
在中等转速范围,两个DISA风门都处于打开状态
【多选题】按规定龄期的( )和( )来划分水泥的强度等级。
A.
抗压强度
B.
屈服强度
C.
抗折强度
D.
弹性模量
【简答题】Chirs was _____(disappoint) with his low score on the exam.
【单选题】At the end of the passage the author seems to suggest that life in future is ______.
A.
disastrous
B.
unpredictable
C.
exciting
D.
colourful
【简答题】How willKim meet Chirs's friend?
【单选题】水泥强度等级是按规定龄期的______来划分的。
A.
抗压强度
B.
抗折强度
C.
抗拉强度
D.
A和B
【单选题】According to the passage, what leads to the lack of qualified workers in the US?
A.
The disadvantages of the agrarian-age education system.
B.
The shortage of work opportunities due to the declining economy.
C.
The cooling of American economy.
D.
Both the education system and the workforce classification.
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