试卷一
87. _________ are the most frequent type of crashes on interstates.
- Rear-end collisions
- Side collisions
- Truck collisions
- Head-on collisions
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topnanjing2023-12-17答案错误 -
topnanjing2023-12-17答案错误
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927王波 福建协和MGH2020-01-31it is begins ahead -
可乐乌龙茶2019-07-01center lines 才对
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255舒彤2018-09-14The answer is wrong! the correct one is a~"begins ahead"