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【单选题】
大气能见度好、气流平稳、空气阻力小、对飞行很有利,现代喷气式客机大多在这一层飞行的是
A.
对流层
B.
中间层
C.
平流层
D.
散逸层
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参考答案:
举一反三
【判断题】双打比赛中,接球员甲准备接球时,其同伴丙可以任意站位,甚至站入甲一侧的发球区内。
A.
正确
B.
错误
【单选题】How did the Japanese couple punish their son?
A.
They hit the son for throwing stones at cars.
B.
They let the son stay in the forest for six days.
C.
They drove away leaving their son by the road.
D.
They made him pick vegetables in the mountains.
【单选题】每一个创业团队都有一个核心创业者,他具备的核心要素不包括
A.
有远见
B.
战略清晰
C.
思路清晰
D.
事必躬亲
【单选题】酶和一般催化剂相比,其特点之一是:
A.
温度能影响催化效率
B.
高温时会出现变性
C.
降低反应的活化能
D.
提高速度常数
E.
不改变平衡常数
【单选题】How did the Japanese couple punish their son?
A.
They hit the son for throwing stones at Cars.
B.
They let the son stay in the forest for six days.
C.
They drove away leaving their son by the road.
D.
They made him pick vegetables in the mountains.
【判断题】防冻开关主要由低温传感器、内部开关、导线等组合而成。
A.
正确
B.
错误
【判断题】一般位置直线是与三个投影面都倾斜的直线。
A.
正确
B.
错误
【单选题】How did the Japanese couple punish their son?
A.
They hit the son for throwing stones at cars.
B.
They let the son stay in the forest for six days.
C.
They drove away leaving their son by the road.
D.
They made him pick vegetables in the mountains.
【单选题】酶比一般催化剂反应速率高出
A.
105~1015倍
B.
108~1020倍
C.
107~1013倍
D.
102~105倍
E.
104~106倍
【单选题】How did the Japanese couple punish their son?
A.
They hit the son for throwing stones at cars.
B.
They drove away leaving their son by the road.
C.
They made him pick vegetables in the mountains.
D.
They let the son stay in the forest for six days.
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