题目内容

下面哪种说法是正确的？

A. HPLC采用高压输液泵输送流动相，流速快，分析速度快
B. 薄层色谱法的定性参数是比移值
C. 在薄层色谱和柱色谱法中，甲醇的洗脱能力比丙酮的强
D. 气-液、液-液色谱属于吸附色谱

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I always have lunch with my colleagues and have some fun ____ noon.

A. in
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_________the schedule, you will interview five applicants tomorrow.

A. Based
B. According to
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If you saw a movie but only thought it was so-so, you can say: "Yeah, it was OK."

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The question “Did you see” is used when asking about movies rather than “Have you seen... ”, because you’re asking about the person’s present state.

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B. 错