单项选择题

A．It has improved animal breeding skills all over the world.
B．It has helped relieve hunger in some developing countries.
C．It has promoted international exchange of fanning technology.
D．It has bridged the gap between the rich and the poor in America.
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单项选择题
A．People think too much of their appearance.B．Surgery is the fastest way of losing weight.C．Being on a diet is a safe way of losing weight.D．There is not a sure way of losing weight yet.
A．People think too much of their appearance.
B．Surgery is the fastest way of losing weight.
C．Being on a diet is a safe way of losing weight.
D．There is not a sure way of losing weight yet.
单项选择题
A．Most people like the museum.B．It is difficult to get up early.C．There might be varied opinions.D．It is a problem to get there.
A．Most people like the museum.
B．It is difficult to get up early.
C．There might be varied opinions.
D．It is a problem to get there.
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