[A]extension[B]retention[C]attention[D]exertion
正确答案:C此题属于语意搭配题。attention表示“注意力,关注”,原句意为:关注病人,因此选项[C]attention正确。选项[A]extension表示“延长,扩充,电话分机”;选项[B]retention表示“保持,保留”,例如:Theretentionofoldtechnologyhasslowedthecompany'sgrowth.选项[D]exertion表示“尽力,努力,运用”,例如:(1)Exertionofauthoritydoesnotcomeeasilytoeveryone.(2)Wewereallexhaustedafterourexertions.


![[A] extension[B] retention[C] attention[D] exertion [A] extension[B] retention[C] attention[D] exertion](http://www.mshxw.com/aiimages/29/21005.png)
