单项选择题


A．frequently
B．seldom
C．often
D．greatly
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单项选择题
A．by contrastB．in essenceC．in the long runD．by name
A．by contrast
B．in essence
C．in the long run
D．by name
单项选择题
A．which are made up ofB．which made up ofC．which are made ofD．which made of
A．which are made up of
B．which made up of
C．which are made of
D．which made of
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