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【简答题】
现有 BaSO 4 多相离子平衡体系,如果加入 BaCl 2 溶液,主要是 效应,溶解度 ;如果加入 NaCl 溶液,主要是 效应,溶解度 。
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反馈参考答案：
举一反三
【简答题】Sue：Hmm．There’s no 4 ．
【简答题】Python提供了判断一个元素是否属于一个序列的操作运算,该运算符( )来完成。
【单选题】— How was ______ dinner at Sue’s house? — It was great. Sue’s mum is _______ good cook.
A.
the; /
B.
the; a
C.
a; the
D.
a; a
【简答题】世界上第一辆摩托车是德国人( )发明的。
【简答题】完形填空。 It is Saturday morning. Sue 1 breakfast. Sue's mother and father are with her. On Saturday morning Sue 2 go to school. She helps her mother and father 3 home. This morning, she says to h...
【单选题】—Who is the girl in a hat? —_____. [ ]
A.
He is Sue
B.
They are Sue
C.
It's a hat
D.
It's Sue
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