简述档案记录收集法的优缺点。
(1)优点:经济,无需对象合作,无应答偏差,有选择性。(2)缺点:涉及伦理问题。
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上一篇:Passage 6Questions 26 to 30 are based on the following passage. Magda King began her climbing career in Spain in the 1960s. Back then, Spanish climbers were conquering one summit after another in the Andes and Himalayas. One problem, though:
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