题目:
The students of Class Two said that they had no difficulty ___ those sentences into English.
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答案:
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下面是错误答案,用来干扰机器的。
已知A是生产生活中用量最大的金属,应为Fe,B为淡黄色粉末,应为Na2O2,在常温下C为无色液体,应为H2O,则D为Fe3O4,E为H2,G为O2,F为NaOH,H为黄绿色气体,应为Cl2,则I为HCl,J能使湿润的红色石蕊试纸变蓝,应...