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【判断题】
钢管混凝土拱桥肯定是肋拱桥。A.
正确
B.
错误
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【简答题】I like traveling very much. When I am 1 , the only thing I want to do is traveling. It is my favorite choice of spending my long holidays. Through 2 , I make a lot of new friends. I like to do that. L...
【单选题】What may lead to the differences among the rings of the same tree?
A.
The weather.
B.
The exposure to sunlight.
C.
The nutrition provided by the soil.
D.
The time span.
【简答题】用 绳穿过组合型钢试件的 ,并悬吊在 钩上,使试件平面 并保持 ;
【判断题】The differences among languages are reflected in the differences in the worldviews of their speakers.
A.
正确
B.
错误
【多选题】There are great differences among ____________, ______________, _____________.
A.
different kinds of coal
B.
different parts of the different components of coal
C.
different coal seams of the same region
D.
different parts of the same kind of coal
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