单项选择题


A．to supplement
B．supplementing
C．to support
D．supporting
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单项选择题
A．thatB．in thatC．whichD．in which
A．that
B．in that
C．which
D．in which
单项选择题
A．assessB．assumeC．assistD．assign
A．assess
B．assume
C．assist
D．assign
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