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《大学英语》（李荫华主编）精读课本第四册第五单元《ＴＯＬＩＥＯＲＮＯＴＴＯＬＩＥ──ＴＨＥＤＯＣＴＯＲ‘ＳＤＩＬＥＭＭＡ》中有这样一句话：…ａｎｕｍｂｅｒｏｆｄｏｃｔｏｒｓｍａｙｓｌｉｐｉｎｔｏｄｅｃｅｐｔｉｖｅｐｒａｃｔｉｃｅｓｔｈａｔｔｈｅｙａｓｓｕ
“College English” (ed. Li Yinhua) Intensive Reading Textbook Volume 5, “TOLIEORNOTTOLIE──THEDOCTOR’SDILEMMA” There is such a sentence: ...anumberofdoctorsmayslipintodeceptivepracticesthattheyassu