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轮系中将首末两个齿轮的角速度或转速之比称为轮系的 。
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【简答题】苏科版九年级下册数学课本第八章复习题答案
【简答题】听两遍。根据你所听到的短文内容，从A、B、C三个选项中选出正确答案。 1．Ma Hui had to leave school ______ according to the tape. [ ] A. once B. twice C. three times 2．The first time Ma Hui left school she worked in a factory for __...
【多选题】下列选项中哪些属于可撤销的合同?( )
A.
采用欺诈、胁迫的手段订立的损害国家利益的
B.
以合法形式掩盖非法目的的
C.
当事人因重大误解订立的
D.
因受欺诈而订立的合同
【简答题】苏教版五年级下册数学补充习题第八章整理与复习答案
【简答题】下面列出的都是残缺句子,请把它们改成完整的句子。 1. After returning from the beach. The children were exhausted. 2. John neglecting his duties and spending time on independent research. 3. Karen dropped calculus. Which she h...
【单选题】Since she is angry, we ____ her alone.
A.
had better to leave
B.
would rather to leave
C.
might as well leave
D.
should as well leave
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