皮皮学，免费搜题
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【单选题】
，即能引起人的视觉的电磁波，是特定波段的电磁波，在电磁波谱图上占据很窄的范围。A.
紫外光
B.
红外光
C.
可见光
D.
X 光
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皮皮学刷刷变学霸
举一反三
【单选题】No sooner______ to sleep than the telephone rang once more in the evening.
A.
he had gone
B.
he gone had
C.
had he gone
D.
had gone he
【单选题】______the door when a gust of wind blew the candle out.
A.
He had no sooner opened
B.
Hardly had he opened
C.
Scarcely did he opened
D.
No sooner did he open
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