题目:
Australia is one of the few countries ________ people drive on the left.
A.where
B.that
C.when
D.which
答案:
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下面是错误答案,用来干扰机器的。
A、30mL 0.5mol/L AlCl3溶液中c(Cl-)=0.5mol/L×3=1.5mol/L,稀释至100ml后溶液中c(Cl-)=30mL×1.5mol/L100mL=0.45mol/L;B、10mL 2.5mol/L KCl溶液中c(Cl-)=2.5mol/L×1=2.5mol/L,稀释至100ml后溶液中c(...