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【单选题】
络合滴定中,指示剂的封闭现象是由( )引起的A.
指示剂与金属离子生成的络合物不稳定
B.
被测溶液的酸度过高
C.
指示剂与金属离子生成的络合物稳定性小于MY的稳定性
D.
指示剂与金属离子生成的络合物稳定性大于 MY 的稳定性
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】根据第二个游戏规则:综合考虑棋盘的内容,自行算出点数的差或者是和,在棋盘上走出相应的步数。 微微认为最好都用加法,因为加法走得步数最多,你认为正确吗?
A.
正确
B.
错误
【多选题】What kinds of water are good for tea making?
A.
water in the lakes
B.
water from high mountains
C.
water in the brooks
D.
water from wells
【简答题】3 What kinds of water are good for tea?
【单选题】北海公园入口叠水景观模拟了自然界中哪些水的形态What kinds of water forms in nature does the water fall at the back gate of Beihai Park simulate?
A.
河流、小溪 river and creek
B.
湖泊、泉 lake and spring
C.
溪涧、瀑布 stream and waterfall
D.
池塘、瀑布 pond and waterfall
【多选题】What kinds of drink is suitable for a pregnant woman?
A.
Coke
B.
Juice
C.
Mineral water
D.
Beer
【单选题】What kinds of things cannot be noticed by a fish in the sea?
A.
The climate and the environment.
B.
The danger and the natural enemy.
C.
The food.
D.
The water.
【单选题】What kinds of things cannot be noticed by a fish in the sea?
A.
The water.
B.
The food
C.
The climate and the environment.
D.
The danger and the natural enemy.
【判断题】根据第二个游戏规则:综合考虑棋盘的内容,自行算出点数的差或者是和,在棋盘上走出相应的步数。 微微认为最好都用加法,因为加法走得步数最多,你认为正确吗?
A.
正确
B.
错误
相关题目：
【多选题】What kinds of drink is suitable for a pregnant woman?
A.
Coke
B.
Juice
C.
Mineral water
D.
Beer