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【单选题】
结构简图中的抽象支座形式很多，主要形式有固定铰支座、可动铰支座、固定支座，下列关于可动铰支座说法中，正确的是( )。A.
构件可绕支座任意转动，但该支座不可有水平方向和垂直方向的任何移动
B.
构件可绕支座任意转动，可沿支座水平方向移动，但垂直方向不可有任何移动
C.
支座处完全是固结的，既不可转动，也不可有水平和垂直方向的任何移动
D.
构件可绕支座任意转动，可沿支座水平方向移动，沿垂直方向也可以随意转动
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【单选题】What does the man suggest that the woman do?
A.
Go to another speech.
B.
Have lunch next door.
C.
Arrive for the seminar earlier.
D.
Wait until the speech is done.
【单选题】Why does the man have to go to work early this morning?
A.
He is working on a speech.
B.
He is leaving early to buy tickets for a ballgame.
C.
He is meeting with his boss.
D.
He is helping his cousin.
【单选题】What does the man want to do?
A.
Go travel．
B.
Go to the cinema．
C.
Have his hair cut．
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