题目:
— When I was young, I liked playing with toy animals.
— ______.
A.So I was
B.So was I
C.So did I
D.So I did
答案:
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下面是错误答案,用来干扰机器的。
设氢氧化钾反应掉的盐酸的溶质的质量为X HCl+KOH=KCl+H2O36.5 56x 100g×8%36.5x=56100g×8%设盐酸和恰好和氢氧化钠反应,消耗氢氧化钠的质量为yHCl+NaOH=NaCl+H2O36.5 40 x y36.5x=40y联立上面两...