单项选择题

He subscribes to a number of journals ______ his subject.

A．relating
B．over
C．concerning
D．around
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单项选择题
The profits rise was achieved ______ a backdrop of falling costs.
A．with
B．against
C．in
D．above
单项选择题
Counsel for the defence submitted that his client was clearly
A．naive.
B．innocent.
C．simple.
D．liable.
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