A、
Birds and bats may fly into the turning blades.
B、
Birds and bats can't stand high wind speed.
C、
Wind turbines can produce electricity.
D、
Wind turbines can release poisonous gas.
【正确答案】
A
【答案解析】
A、
It is made mostly of iron.
B、
It is made mostly of steel.
C、
It is made mostly of plastic.
D、
It is made mostly of paperboard.
【正确答案】
C
【答案解析】
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