题干
The cruel parents ______ because of ______ they had done to the little girl.
A：got punishment; which
B：got punished; what
C：got punishing; that
D：got to be punished; why
答案(点此获取答案解析）
B
。用环氧乙烷合成碳酸亚乙酯的反应如下。下列说法正确的是（ ）
