题目内容
（请给出正确答案）
[主观题]
Would you do me ______ favour？ Do me ______ favour to turn on the TV.A．a, theB．the, aC．× ,
Would you do me ______ favour？ Do me ______ favour to turn on the TV.
A．a, the
B．the, a
C．× ,a
D．the, ×
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A．离心泵和往复泵
B．离心泵和真空泵
C．压缩机和真空泵
D．往复泵和压缩机
