检查空调专用电源开关时,用红外测温仪进行测量,要求开关表温度以不超过()℃为正常。
A.60
B.70
C.80
D.90
参考答案:C
---Do you mind _____alone at home?
---No, but I want a good book_______. [ ]
A .leaving; to read
B. to be left; reading
C. to leave; reading
D. being left; to read
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