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【单选题】
一对齿轮啮合，主动齿轮齿数为30，从动齿轮齿数为60，其该级齿轮传动比为( )。A.
0.5
B.
0.2
C.
3
D.
2
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反馈参考答案：
举一反三
【单选题】Your client has failed to (10) … his obligations under the agreement and is therefore clearly in breach of contract.
A.
do
B.
make
C.
carry out
D.
accomplish
【单选题】Under the agreement, all trade barriers between the two countries will be ______ by the end of this year.
A.
abolished
B.
canceled
C.
eliminated
D.
disposed
【单选题】Under the agreement, all trade barriers between the two countries will be- by the end of the year.
A.
abolished
B.
canceled
C.
eliminated
D.
disposed
【单选题】What will happen to nuclear warheads under the agreement?
A.
They will be disassembled in Russia.
B.
They will be disassembled in Ukraine.
C.
They will be controlled by Russia.
D.
They will be controlled by the Black Sea Fleet.
【简答题】Underthe agreement, all trade barriers between the two countries will be ________bythe end of this year.A. abolished B. canceled C. eliminated D. disposed
【单选题】Under the agreement, the nuclear warheads will be ______.
A.
controlled by Russia
B.
controlled by the Black Sea Fleet
C.
disassembled in Ukraine
D.
disassembled in Russia
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