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【简答题】
简述液压系统的优缺点?
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举一反三
【单选题】I don't know _________. [ ]
A.
where he lives
B.
where does he live
C.
where did he live
D.
where he live
【单选题】In Paragraph 3, the phrase 'this need' refers to______.
A.
the need to prolong the lives of old people
B.
the need to enrich the life of the retired people
C.
the need to build profit-making nursing homes
D.
the need to take care of sick and weak people
【单选题】Does Li Lei play volleyball very often?
A.
Yes, he does.
B.
He sometimes plays it.
C.
No, he doesn't.
【简答题】从方框中选择最佳选项完成对话，有两项多余。 A. Is she friendly? B. Yes, he does. C. What does he look like? D. No, there isn't. E. What are you doing? F. Where is he from? G. No, he doesn't. M: Hi, Linda. 1_____ W: I'm doi...
【单选题】What does the man want to express?
A.
He doesn't like traveling.
B.
He likes traveling.
C.
He likes traveling and staying at home.
【单选题】罗素等人分析之后,发现集合论悖论的实质是()。即,一个待定义的概念,用了包含该概念在内的一些概念来定义,造成恶性循环。
A.
“本末倒置”
B.
“自我矛盾”
C.
“自我指谓”
D.
“概念有错”
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