Histocompatibility antigens that attack foregn tissue in the body cannot have been .through evolution expressly to .orga
Histocompatibility antigens that attack foregn tissue in the body cannot have been .through evolution expressly to .organ transplantation; on the contrary,they have been found to facilitate many essential biological functions.
A designed ...retain
B produced ...aid
C developed ...enhance
D selected ...promote
E conserved ...foil
我认为,on the contrary 前后句意应该相反吧,前句有cannot,那就是说明第二空应该填和后一句facilitate同义的词才对啊,还是说应该这样理解,分号前后态度相同,那就是cannot have been to ...和 have been ...facilitate 一致,所以说第二空应该填facilitate的反义.该怎么理解啊,分号是什么含义
A designed ...retain
B produced ...aid
C developed ...enhance
D selected ...promote
E conserved ...foil
我认为,on the contrary 前后句意应该相反吧,前句有cannot,那就是说明第二空应该填和后一句facilitate同义的词才对啊,还是说应该这样理解,分号前后态度相同,那就是cannot have been to ...和 have been ...facilitate 一致,所以说第二空应该填facilitate的反义.该怎么理解啊,分号是什么含义
英语人气:601 ℃时间:2019-11-09 01:11:10
优质解答
你分析的没错呀,第二空填负向词,foil,分号的意思理解的也没出入呀,就是前后表达的同一事物同一方向
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