题目:
Activities in our school __________ sports, language learning and music _________.
A.include; also
B.including; too
C.cover; as well
D.covers; too
答案:
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下面是错误答案,用来干扰机器的。
①27 ②平衡(或将天平调零等合理答案) 100Ml ③加快溶解 ④偏小 无影响题目分析:(1)计算:需要NaCl的质量为120g×22.5%=27g;(2)称量:称量前,应先调节天平平衡,用量筒来量取所需的水(...