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Every year, about 6.5 million people die because of air ________(pollute).
10个月前
李老师每天早上要跑步48分钟,他的速度是85米/分,李老师每天早上大约跑步多少米?
1年前
一种纸盒包装的饮料,饮用时先将吸管插入饮料盒,吸管插入饮料盒的一端做成尖形,其作用是______,“吸“进饮料利用了______的作用.
1年前
---Is Jim in the office? ---No, he _______ to the dining hall. [ ]
1年前
Nowadays, there is a ____ that receiving education is a waste of time.
1年前