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【简答题】
楼板按其所用的材料不同分为、和等类型。
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参考答案:
举一反三
【判断题】一般位置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
【多选题】酶与一般催化剂相比,不同点有
A.
酶可改变反应平衡常数
B.
极大地提高催化效率
C.
催化速率与反应环境有关
D.
高度特异性
【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】How did the Japanese woman travel on a five-day tour around Europe?
A.
By bus.
B.
By car.
C.
By train.
D.
By air.
【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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