单项选择题

The greatest task facing agricultural scientists in this region is the __________ of an adaptable farming system.

A．determination
B．distribution
C．discipline
D．evolution
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单项选择题
There is no __________ that this will be a serious blow to the government.
A．denying
B．declining
C．ignoring
D．rejecting
单项选择题
In a typhoon, winds __________ a speed greater than 120 kilometers per hour.
A．assume
B．attain
C．accomplish
D．assemble
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