单项选择题

Scientists first ______ the idea of the atomic bomb in the 1930s.

A．conserved
B．conceived
C．converted
D．contrived
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单项选择题
We tried our best to ______ the loss in the disaster.
A．decrease
B．subtract
C．minimize
D．degrade
单项选择题
Which of the following statements about the Nile Delta is UNTRUE
A．It is among the world's most intensely cultivated lands.
B．It is being eaten away by Cairo.
C．It is the world's highest use of fertilizer.
D．It is famous for its agricultural wealt
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