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【简答题】
运动是以______为杠杆,______为支点,______为动力而形成的.
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参考答案:
举一反三
【单选题】听力原文:Jane, I'm afraid I won't be able to make your party. If I don't make it by half past ten, assume I'm not coming. What does the speaker mean to Jane?
A.
The speaker will not join the party until half past ten.
B.
If the speaker can finish his work before half past ten, s/he will join the party.
C.
If the speaker does not arrive at the party until half past ten, s/he will not join the party.
D.
The speaker is not able to join the party because he will not be available until half past ten.
【判断题】1932 — 1945 年期间,东北抗日义勇军和东北抗日联军的游击战场主要在吉林省。
A.
正确
B.
错误
【单选题】We hadn't waited for long _____ the bus pulled up at the bus stop. [     ]
A.
until
B.
since
C.
before
D.
once
【单选题】听力原文:W: Hello, Kevin. This is Lucy. I'm afraid I won't be able to attend the party. I was just asked to go to a meeting at the same time as the party. M: Do come after your meeting, Lucy. Our party wo...
A.
She was afraid she might be kept too late.
B.
She would have something more important to do.
C.
She had to meet a friend of hers.
D.
She was not in the mood to attend the party.
【简答题】听 Mary 和 Amy 的对话。在空白处填入你听到的交通方式。 Mary: Well, first I tried to catch ___1___ but I waited for half an hour and no taxis were available. So I decided to take ___2___ . After waiting for fif minute...
【简答题】Mary: Well, first I tried to ( 1 ) , but I waited for half an hour and no taxis were available. So, I decided to ( 2 ) . After waiting for fif minutes at the bus stop, the bus finally came....
【单选题】专一性杀虫剂VSR值( )。
A.
1-10
B.
10-100
C.
100-1000
D.
>1000
【判断题】无损压缩压缩前和压缩后还原的数据一致
A.
正确
B.
错误
【多选题】引起液压缸爬行现象的原因是
A.
空气侵入
B.
液压缸活塞杆与活塞不同心
C.
液压缸端盖密封圈压得太紧或过松
D.
缸内腐蚀、拉毛
【单选题】液压舵机出现油缸爬行现象,引起的原因可能是()
A.
油压过低
B.
系统内有空气
C.
负荷过重
D.
操作不平稳
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