单项选择题


A．which
B．that
C．what
D．where
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单项选择题
Little progress can be made in the present economic ________ in this underdeveloped country.
A．mood
B．air
C．climate
D．fashion
单项选择题
A．supportB．reservationC．supplyD．provisions
A．support
B．reservation
C．supply
D．provisions
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