单项选择题

Your proposal looks good ______ ,but I am not convinced it can be put into effect.

A．on paper
B．at sight
C．under cover
D．in bulk
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单项选择题
This book does not have an ______ structure. Some parts are even contradictory .
A．integrated
B．informed
C．intensive
D．inward
单项选择题
The price of fresh vegetables ______ according to the weather.
A．fluctuates
B．increases
C．soars
D．maintains
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