题目内容

【单选题】The first question you will ask yourself is ____ .

A. what I want to do
B. what I should know
C. what I like
D. what I should have

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【单选题】“More ‘heads’ are definitely better than one” means ____ .

A. 人多力量大
B. 三个臭皮匠顶个诸葛亮
C. 愚公移山
D. 相信群众

【单选题】 The Web is a treasure of useful information about the____ that interest you.

A. jobs
B. employers
C. locations
D. All of the above.

在电位滴定法测定HAc含量的实验中，根据（）来确定滴定终点。

A. 酚酞变色
B. 甲基橙变色
C. pH=7.0
D. pH突跃

电位滴定法用于氧化还原滴定时，指示电极应选用（）。

A. 玻璃电极
B. 甘汞电极
C. 银-氯化银电极
D. 铂电极