题目内容
（请给出正确答案）
How to raise the efficiency, ______ is the question.
A．what
B．which
C．that
D．if
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（由简答题聘请的专业题库老师提供的解答）
更多“How to raise the efficiency, ______ is the question.A．whatB．whichC．thatD．if”相关的问题
How do hotels react to the penny-pinching policy？
A．They have to raise their rates.
B．They charge more on extra services.
C．They offer better deals for travelers.
D．They are suffering successive dismal.
How much is the Red Cross trying to raise for survivors of Haiti’s earthquake？
A．100 million dollars.
B．22 million dollars.
C．120 million dollars.
听力原文：How did they raise money in the walkathon？
(24)
A．By collections made at hospital.
B．By money from sponsors.
C．By the funds from local hospitals.
D．By contributions based on the number of miles walked.
How much money do they want to raise at the Toronto running event this year？
A．$200,000
B．$400,000
C．$800,000
D．$1,200,000
A、raise transmision stiffness
B、choose the best transmission ratio
C、use transmission parts with low friction
D、eliminate the clearance of transmission chain
A.$75
B.$125
C.$50
D.$200
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