皮皮学，免费搜题
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【单选题】
下列方法按任务分类的是A.
仲裁分析与例行分析
B.
化学分析与仪器分析
C.
常量分析与微量分析
D.
定性分析、定量分析和结构分析
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
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【单选题】听力原文： If you've been on campus for very long, I'm certain that you've already heard about this course. You may know that last semester about 50 percent of the students enrolled in my course failed it....
A.
10 points.
B.
2 points.
C.
15 points.
D.
5 points.
【单选题】听力原文： If you've been on campus for very long, I'm certain that you've already heard about this course. You may know that last semester about fifty percent, of the Students enrolled in my course failed...
A.
10 points.
B.
2 points.
C.
15 points:
D.
5 points.
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