单项选择题

A．A
B．The
C．Another
D．This
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单项选择题
A．of whichB．soC．in whichD．that
A．of which
B．so
C．in which
D．that
单项选择题
A．sufficientlyB．efficientlyC．amplyD．effectively
A．sufficiently
B．efficiently
C．amply
D．effectively
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