单项选择题

For light traffic, which of the following is not used

A．Sand clay.
B．Macadam.
C．Brick.
D．Bituminous mixture.
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单项选择题
Last year exports to China was boosted by ______.
A．25 percent
B．24 percent
C．23 percent
D．22 percent
单项选择题
Protests in South Korea have not ______.
A．escalated into civic campaigns nationwide
B．called for a boycott of Japanese goods
C．postponed joint military exercises with Tokyo
D．established a neutral just body to settle such a dispute
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