单项选择题

To obtain a satisfactory result, one must apply two ______ of paint on a clean surface.

A. coats
B. levels
C. times
D. courses
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单项选择题
The road is laid ahead of him, a ______ gray line stretching to the horizon.
A. constant
B. repeated
C. continuous
D. wide
单项选择题
According to official statistics, retail sales in China rose 10% and 12.2% in the first and the second quarter ______ this year.
A. accordingly
B. correspondingly
C. respectively
D. individually
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