单项选择题

It is true that （）a wild plant into a major food crop such as wheat requires much research time.

A．multiplying
B．breeding
C．magnifying
D．generating

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单项选择题
There was once a town in this country where all life seemed to live in （）with its surroundings.

A．coincidence
B．harmony
C．uniform
D．alliance
单项选择题
If you want this pain killer, you'll have to ask the doctor for a （）

A．receipt
B．recipe
C．subscription
D．prescription
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