单项选择题

The document was compiled by the Department of Health．

A．written
B．printed
C．attached
D．sent
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单项选择题
We've seen a marked shift in our approach to the social issues．
A．clear
B．regular
C．quick
D．great
单项选择题
In the process，the light energy converts to heat energy．
A．reduces
B．changes
C．leaves
D．drops
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