问题
判断题
离子色谱分析中，水负峰的位置由分离柱的性质和淋洗液的流速决定，流速的改变可改变水负峰的位置和被测离子的保留时间。
答案
参考答案：对
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离子色谱分析中，水负峰的位置由分离柱的性质和淋洗液的流速决定，流速的改变可改变水负峰的位置和被测离子的保留时间。
参考答案：对
根据对话内容，从方框中选择5个恰当的句子完成对话，并将所选句子前的字母代号写在答题卡上的相应题号后。 A: Hi, Dick! What are you going to do tonight? B: I have no idea. What do you suggest? A: How about going to see a movie? B: 小题1: But I hear there is a talk at 7:00 in the City Hall. A: What’s the talk about? B: The history of music. 小题2:__________________ A: Me, too. 小题3:_______________ B: Good idea! Let’s go to the City Hall instead of going to the movie. A: By the way, my friend ,Jenny likes music, too. 小题4:____ B: Certainly. 小题5: A: Let’s meet at the school gate at 6:30 in the evening, OK? B: OK. See you then. A: See you.
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