单项选择题

Nicotine is poisonous

A．Right
B．Wrong
C．Not mentloned

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单项选择题

A．meehanical B．movableC．automaticD．electronic

A．meehanical
B．movable
C．automatic
D．electronic

单项选择题

What is NOT the result of consuming fossil fuels according to the last paragraph

A．Rainforests will be destroyed．
B．Arctic ice will be melted．
C．The earth’s temperature will be raised．
D．The sea level will go up．

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