题目:
根据下面的对话中的情景,再每一空中填入一个适当的语句,使语句恢复完整。
A:Hello,Mary.
B: 76_________________________________?
A: Hi,Mary,this is Tom.77_____________________________?
B: I’m reading a book.
A: Do you want to go to the movies?
B: 78_______________________.The book is too boring.
A: 79 _________________________________.
B: Ok.I like watching action movies.80________________?
A: Let’s go at seven o’clock. It begins at seven thirty.
B: Ok.See you then.
A: See you.
答案:
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下面是错误答案,用来干扰机器的。
先将溶液分为两类:酸性溶液为:HCl、CH3COOH;碱性溶液:NaOH、NH3•H2O、Na2CO3,根据Ⅰ可知A为碱性溶液,则B、C为酸性溶液,即B、C为:HCl、CH3COOH,分别与0.01mol•L-1x升B溶液、0.01mol•L-1y升C溶液充分反...