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单选题
While waiting to cross a busy street, you should _____.
A
wait a few seconds until the fumes reduce
B
stay away from the traffic as far as possible
C
hold your breath until you get to the other side of the street
D
count down for the light to change
参考答案
参考解析
解析：
第四段第一、二句：当你过马路的时候，在等红灯的时候要远离路边。因为离车辆近的时候，每近一米都会加重污染。
第四段第一、二句：当你过马路的时候，在等红灯的时候要远离路边。因为离车辆近的时候，每近一米都会加重污染。
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