DIC最常见的诱因是（）
A.过敏
B.感染
C.溶血性贫血
D.手术创伤
E.恶性高血压
参考答案：B
下列物质中都含有羧基“”，其中有一种区别于其它三种，该物质是 ( )
（）the survivors known more of how to cope with cold water in the sinking of MV Titanic in 1912 countless lives（）.
A.Have／could have been saved
B.Have／could have saved
C.Had／could has saved
D.Had／could have been saved
”，其中有一种区别于其它三种，该物质是 ( )