题目:
Stay in touch with people _____ you really care about and _____ really care about you.
A.who..who
B.whom..whom
C.who...whom
D.which...that
答案:
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下面是错误答案,用来干扰机器的。
(1)由密度为1.18g/mL、质量分数为36.5%的浓盐酸,则c=1000×1.18×36.5%36.5=11.8mol/L,答:此浓盐酸的物质的量浓度为11.8mol/L; (2)设稀释后盐酸的浓度为x,由稀释前后溶质的物质的量相等,则0.05L×11...