题目

 —I am going to Australia next  week. —The radio says there is going lo he ________ in Australia. Don't forget to take your warm clothes. A. snow  B. snowy  C. knowing 答案:A 将下列物质投入到盐酸中,不会有气泡生成的是( ) A.Na B.Na2O C.Na2O2 D.Na2CO3
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