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【单选题】
控制液压系统中执行元件动作的先后次序的回路称为（）。A.
压力控制回路
B.
速度控制回路
C.
方向控制回路
D.
顺序动作回路
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举一反三
【单选题】We can infer from the experience of Michell that
A.
he has shown the gifts as an actor when he was a child.
B.
he was a drama major at Cambridge and produced many works there.
C.
he still made great achievements when reverting to TV career.
D.
he had worked as a resident director for more than twenty years.
【单选题】力法典型方程中,系数 的含义是( )
A.
未知量 单独作用在基本结构上产生的与未知量 对应的位移
B.
未知量 单独作用在基本结构上产生的与未知量 对应的位移
C.
未知量 为单位力时单独作用在基本结构上产生的与未知量 对应的位移
D.
未知量 为单位力时单独作用在基本结构上产生的与未知量 对应的位移
【单选题】-- the American film been shown on TV? --Yes, it shown last week.
A.
Has...had
B.
Has...was
C.
Have...had
D.
Are...was
【简答题】阅读理解。 Studies have shown that the fewer medicines a person has to take the more likely he or she will take them. Last week, a study was released about a new treatment that combines 5 medicines for hea...
【单选题】What he did has __________ shown his attitude.
A.
as well as
B.
as good as
C.
so well as
D.
so good as
【简答题】[A] heard [B] has thought [C] has shown [D] suggested
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