单项选择题

A) but C) however
B) whereas D) while

A．but
B．whereas
C．however
D．while
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单项选择题
A) encouraging C) reassuring B) inspiring D) aiding
A．encouraging
B．inspiring
C．reassuring
D．aiding
单项选择题
A) Economic C) Public B) Political D) Institutional
A．Economic
B．Political
C．Public
D．Institutional
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