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【单选题】
配有普通箍筋的钢筋混凝土轴心受压构件中,箍筋的作用主要是( )。A.
抵抗剪力
B.
约束混凝土
C.
形成钢筋骨架，约束纵筋，防止纵筋压凸
D.
以上三项作用均有
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【简答题】阅读理解。 Microwaves may be great at warming up food, but what about warming people? Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture....
【单选题】One of the ________ of our planet’s warming up is an increase in the number of natural disasters.
A.
consequences
B.
reasons
C.
causes
D.
Processes
【简答题】They returned my keys to me. Someone (pick) ______ them up in the street.
【简答题】Keys to warming up exercise
【简答题】阅读理解。 Microwaves may be great at warming up food, but what about warming people? Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture....
【简答题】Microwaves may be great at warming up food, but what about warming people? Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furn iture. And ...
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