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- 单项选择题Remember to __________ before you reach the cross-roads, or you may find yourself in trouble with the police. ( 章节：1 难度：1)
A、start up
B、speed up
C、slow down
D、start off
- C
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A、start up
B、speed up
C、slow down
D、start off
关注下方微信公众号，在线模考后查看