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单项选择题

The Martian surface temperature is 100 degrees below zero at night, so that butter put outside will not ______ .

A．thaw
B．dissolve
C．melt
D．fuse

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热门试题

单项选择题______their terms, we would go bankrupt.

A．If we accept
B．If we should accept
C．If we had accepted
D．If we are to accept

单项选择题Wild ducks always fly in a definite ______ .

A．figure
B．formula
C．shape
D．formation