根据酸在水溶液中电离出（）的程度，可把酸分为强酸和弱酸。
A、OH-
B、H+
C、Cl-
D、金属离子
参考答案：B
Some of my classmates were against the suggestion while others were _____ it.[ ]
A. in honour of
B. in memory of
C. in search of
D. in favor of
下列不属于服务营销组合的是（）。
A.价格
B.产品
C.人
D.售后
