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【多选题】
曳引钢丝绳打滑的原因是( )。【多选】A.
系数大
B.
太大
C.
槽性不对
D.
钢丝绳磨损过大
E.
电动机功率太小
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举一反三
【简答题】根据句子的意思以及括号内的提示完成句子。 1. Don't wake him up.He has just fallen __________. 2. Where does the talk ________ (大概) take place? 3. Such an advertisement most likely a ________ in a newspaper. 4. It's really...
【单选题】She has fallen in love with Jack, _______ find hard to imagine.
A.
who
B.
that
C.
whom
D.
which
【单选题】燃烧2mol某有机物，可以收集到标准状况下89.6L的CO 2 和6mol的H 2 O，试推断该有机物 的分子式可能是
A.
C 2 H 4
B.
C 2 H 6 O
C.
C 2 H 4 O 2
D.
C 3 H 6 O
【单选题】Section A Directions: In this section, there are 10 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A , B, C, an...
A.
who
B.
that
C.
whom
D.
which
【单选题】关于人工被动免疫的叙述,下列哪项是错误的?( )
A.
直接输入含特异性抗的免疫制剂,使机体立即获得特异性免疫力
B.
作用快
C.
维持时间短
D.
可用于紧急预防和治疗
E.
维持时间长
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【单选题】She has fallen in love with Jack, _______ find hard to imagine.
A.
who
B.
that
C.
whom
D.
which
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