单项选择题

国家规定厚煤层工作面采出率不低于（）。
A、93%
B、90%
C、97%
D、95%

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未分类题

EMI's downloading trial was between ______.A.the recording industry and on - line record companiesB.the recording industry and downloading -program operatorsC.EMI and on -line music providersD.EMI and MP3

A.A.the
B.the
C.EMI
D.EMI

未分类题

In the sentence 'Using a moderately powerful desktop computer running a music composition program and a '500 synthesizer ' (paragraph 2), the word 'moderately' has the meaning of ______.A.properlyB.slightlyC.lessD.a little

A.A.properly
B.slightly
C.less
D.a

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