单项选择题

In the process，the light energy converts to heat energy．（）

A．reduces
B．changes
C．1eaves
D．drops

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热门试题

单项选择题

Her father was a quiet man with graceful manners．（）

A．polite
B．similar
C．usual
D．bad

单项选择题

There was a profound silence after his remark．（）

A．proud
B．short
C．sudden
D．deep

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