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64.They are well _____ with each other since they once studied in the same university. A.indentified(be indentified with 与某人持认同，感觉的与某人接近) B.recognized (A ， B区别不考)(n. recognition 赞誉 承认 be recognized 被承认 被证实) C.acknowledged 承认 告知 D.acquainted (be acquainted with 与某人熟识) 65.There is a __________ difference in meaning between the words surroundings and environment. A.gentle B.subtle(事情)不明显 不显著 (人)精明的 敏锐的 C.feeble 脆弱的 虚弱的 D.humble 谦虚的 | 
