A-A+
It can be inferred from the passage that donor
问题详情
It can be inferred from the passage that donor heart__________. 查看材料
A.saved the lives of about 2100 Americans the year before the report
B.will be replaced by self-contained artificial hearts sooner or later
C.are more popular and cheaper than self-contained artificial hearts
D.can help patients survive less than 15 years if they are in good transplant请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：A
题干：从文中可以推断出别人捐赠的心脏__________。推断题。从第五段“Onlyabouthalfofthe4，200Americansonawaitinglistfordonorheartsreceivedthemlastyear，andmostoftherestdied．”可知4200个美国人中去年只有大约一半人接受到捐献，所以A项是正确的；从第六段可知，包括里士满弗吉尼亚医学院心脏病学主任RobertHiggins在内的一些医生说，人工心脏不太可能替代捐献的心脏。而且如果移植得好，一个捐献的心脏可存活l5～30年，所以可知选项8和D是错误的，而选项C原文未提及，所以该题的正确答案为A。
