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【单选题】
钢筋混凝土塑性铰与普通铰的区别是( )A.
塑性铰可任意转动，普通铰只能单向转动
B.
塑性铰转动幅度受限制，但可任意转动
C.
塑性铰转动幅度受限制，其塑性区域为无限大
D.
塑性铰只能单向转动，且能承受定值的弯矩
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举一反三
【简答题】构件和零件不同,构件是运动单元体,零件是( )单元体。
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【简答题】构件是 单元;零件是 单元。
【简答题】构件是 单元,零件是 单元。
【简答题】The position of women in Vietnam has improved.
【单选题】听力原文： Vietnam's prime minister has announced his plans to visit the United States next month. He'll be the first Vietnamese leader to travel to the US since the end of the Vietnam War. Prime Minister ...
A.
In June.
B.
Last month.
C.
Next month.
D.
On his official trip to Australia.
【简答题】A．Television has been very effective in spreading news. B．Vietnam War was the first live broadcast of TV. C．Television can even change the way a government acts. D．Television did more to end the Vietn...
【单选题】Where has the highest rates of newborn deaths in the world?
A.
South Asia.
B.
Vietnam.
C.
Africa.
D.
South America.
【简答题】构件和零件不同,构件是( )单元体,零件是( )单元体。
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