问题
判断题
胶体颗粒表面能吸附溶液中电解质的某些阳离子或阴离子而使本身带电。
答案
参考答案:对
胶体颗粒表面能吸附溶液中电解质的某些阳离子或阴离子而使本身带电。
参考答案:对
Tom and Gina usually go to school by car .They drive(驾车) pasta cinema a supermarket a post office. The post office is next to the supermarket on Center Street .Mary and Ann usually go to school by bus. They go down Sixth Avenue, past a bank and a library. The bank is across from the library. Jenny usually goes to work by bike,he rides(骑车) past a hotel and three streets.
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