单项选择题

The scientists began to accumulate a huge mass of data.

A．build up
B．put up
C．make up
D．clear up
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单项选择题
The parents have to restrain their daughter from running out into the street.
A．disallow
B．reduce
C．prevent
D．confine
单项选择题
With immense relief, I stopped running.
A．much
B．enormous
C．little
D．extensive
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