单项选择题

China started its nuclear power industry only in recent years, and should ______ no time in catching up.

A．delay
B．lose
C．lag
D．lessen
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单项选择题
In almost all chemical-process plants, heat is ______ by burning of fossil fuels—coal, oil, or natural gas.
A．transformed
B．conducted
C．transferred
D．generated
单项选择题
She was extremely lucky; when her great-uncle died, she ______. a fortune.
A．came by
B．came over
C．came into
D．came about
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