黄芩苷易发生（）
A.水解
B.氧化
C.变旋
D.晶型转变
E.蛋白质变性
参考答案：B
—How about going to the park by bus?
—I prefer ______ rather than ______. [ ]
A. to ride a bike; take a bus
B. to take a bus; ride a bike
C. riding a bike; take a bus
D. taking a bus; ride a bike
水源取水计划主要确定的内容有哪些？
