浼氬憳鐧诲綍
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绗簩鍗曞厓绗?璇炬椂銆婂叡浠烽敭銆嬭鏃剁粌涔狅紙鏁欏笀鐗堬級
涓€銆侀€夋嫨棰楛br>1. [ 2019?澶╂触閮ㄥ垎鍖鸿仈鑰僝涓嬪垪鐗╄川涓紝鏃㈡湁绂诲瓙閿紝鍙堟湁鍏变环閿殑鏄?br>A. H2O B. Cl2 C. Na2O D. NaOH
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