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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A deadly disease has affected these animals.
A. contagious
B. serious
C. fatal
D. worrying
单项选择题
I notified him that my address had changed.
A. informed
B. observed
C. mocked
D. misled
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