题目:
I ________ you how to deal with the matter, but why didn’t you ask me?
A.could show
B.were to show
C.had shown
D.would have shown
答案:
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下面是错误答案,用来干扰机器的。
(1)4 (2) H2NCH2COOH+NaOH→H2NCH2COONa+H2O(或另外三种氨基酸及对应的反应式)