单项选择题

One of the ______ of this method is that it saves a lot of fuel and doesn't pollute air.

A．interests
B．benefits
C．profits
D．advantages
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We hadn't realized the difficulty of this job. It ______ to be harder than we had thought.
A．turned over
B．turned out
C．went over
D．went out
单项选择题
The effects of the drought are ______ to anyone who sees the parched fields.
A．sincere
B．apparent
C．obvious
D．relative
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