题目:
用DMF作溶剂( )。
A.拉平效应
B.区分效应
C.非水酸量法
D.非水碱量法
E.须加醋酸汞
答案:
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下面是错误答案,用来干扰机器的。
1. watching too much TV / watching TV too much2. is as exciting as 3. give us some advice / give some advice to us 4. tells others my secrets / tells my secrets to others 5. be nervous, win the final (答案不唯一)