禁忌采用腹腔镜胆囊切除术的是
A. 胆囊结石
B. 慢性胆囊炎
C. 胆囊息肉
D. 急性胆囊炎
E. 胆囊萎缩
It with cost you very little to give the boy _____ once in a while; he needs encouragement.
It’s _____; we had better hurry home.
University graduates have an advantage _____ others I getting a job.
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