单项选择题

Professor Johnson is said to have made some ________ advance in his research in the past year.

A．extensive
B．significant
C．fundamental
D．dominant
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单项选择题
This is a simple rule, and for 40 years the ________ majority of charitable organizations have strictly observed the prohibition.
A．numerous
B．vast
C．most
D．massive
单项选择题
The Minister of Finance is believed to be thinking of ________ new taxes to raise extra revenue.
A．imposing
B．inserting
C．plunging
D．enclosing
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