问题
判断题
重量分析法要求沉淀剂的选择性要好，即要求只与待测组分生成沉淀，而与其他干扰组分不形成沉淀。
答案
参考答案：对
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重量分析法要求沉淀剂的选择性要好，即要求只与待测组分生成沉淀，而与其他干扰组分不形成沉淀。
参考答案：对
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| Li Lei is a student 1 Class Two, Grade Seven. He likes football very 2 . He often plays it after school. And he often goes home 3 . His home is 4 the school. His mother doesn't worry 5 him. One Sunday morning Li Lei goes to a shop 6 his mother. The shop is very 7 . There are many things 8 it. They get some things. Then his mother says to Li Lei, "What do you 9 ?" "I want to get a red blouse." says Li Lei. "A red blouse?" asks his mother. "You are a 10 . You can't wear a red blouse." Li Lei smiled, " OK, please get me football clothes." | ||||
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