酱油中的鲜味主要来自()。
A.蛋白质
B.糖
C.有机碱
D.游离氨基酸
E.酯
参考答案:D
解析:酱油中的鲜味主要来源于蛋白质发酵后的产物谷氨酸和天门冬氨酸。
根据句意和汉语提示,在空格中填入正确的短语(每空限填一词)。
1. "Now class, ______ ______(上交) your papers," the teacher said when the class was nearly over.
2. You should ______ ______ (放弃) smoking. It's bad for your health.
3. The story says Monkey King was ______ ______ (解救; 释放) by a Tang dynasty monk, Xuanzang.
4. — Michael, would you mind making your bed? — Sorry, Mum. I'll do it______ ______ (马上).
5. After doing my homework, I was tired and ______ ______ (入睡) soon.
I'm from _____.
A. America
B. American
C. Chinese
D. English