题目内容

提取原生苷时，为抑制或破坏酶的活性，可采用

A. 在中药中加入碳酸钙
B. 在中药中加入酸水加热
C. 沸水提取
D. 甲醇提取
E. 新鲜药材迅速干燥

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Which of the following is not the correct expression for "车厢"？

A. coach
B. carriage
C. compartment
D. berth

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B. How would you like your beef steak cooked?
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A. receipt, ticket
B. receipt, passport
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