单项选择题

Passage One

A．They are the main cause of the world-wide food problem.
B．They are the bad quality of the world-wide food problem.
C．They are at the low level of the world-wide food problem.
D．They are the less important factor of the world-wide problem.
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单项选择题
A．Sometimes she eats in her friends home.B．Sometimes she eats at home when she gets ride and leaves the house.C．Sometimes she eats in a hotel.D．Sometimes she has her breakfast in the school cafeteria.
A．Sometimes she eats in her friends home.
B．Sometimes she eats at home when she gets ride and leaves the house.
C．Sometimes she eats in a hotel.
D．Sometimes she has her breakfast in the school cafeteria.
单项选择题
A．A porter.B．A policeman.C．A servant.D．A service station attendant.
A．A porter.
B．A policeman.
C．A servant.
D．A service station attendant.
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