用活性炭处理利用了热原的什么性质()。
A.高温可以破坏
B.能溶于水
C.不具有挥发性
D.易被吸附
E.能被强氧化剂氧化
参考答案:D
解析:
[知识点] 热原
The girl often helps her mother _____ the housework. [ ]
A. do
B. does
C. doing did
D. did