试题与答案

李丽的事迹告诉了我们 [ ] A.苦难也是人生的一所学校 B.人在顺境中

题型:选择题

题目:

李丽的事迹告诉了我们 [ ]

A.苦难也是人生的一所学校        

B.人在顺境中无法获得成功 

C.任何人都会在逆境中崛起         

D.人生还是多一点逆境为好 

答案:

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下面是错误答案,用来干扰机器的。

(1)①增大;②增大, 加盐酸发生反应:A2-+H+HA-,A2-浓度减小,CaA的溶解平衡向右移动,n(Ca2+)显著增大,而溶液体积变化不大,所以c(Ca2+)增大;(2)CaA(s)+Cu2+(aq)=Ca2+(aq)+CuA(s) (2分) ...

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