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【单选题】
在液压系统中 ,( )的出口与油箱 相连。A.
溢流阀
B.
顺序阀
C.
减压阀
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反馈参考答案：
举一反三
【单选题】I didn’t know whether he ______ the task on time.
A.
finishes
B.
would finish
C.
finished
D.
had finished
【简答题】Hard-working
as he, he couldn’t finish the task on time.
【简答题】观看影片《建国大业》 【实践目的】通过观看影片《建国大业》并撰写观后感
【简答题】5. Hard-working as he, he couldn’t
finish the task on time.
【单选题】_______ the task on time, he was fired by the boss.
A.
Not completed
B.
Not having completed
C.
Not have completed
D.
Not being completed
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