CXD逻辑一道

tocean0222

以下是引用albert在2003-7-3 6:20:00的发言：
CXD逻辑：
answer: B  
why not A?
thanks

Choice A suggests that the uniqueness of blood type o is due to its compatibility to the blood type of most people,which is not mentioned in the argument,rather than
the fact that type o blood can be given to any recipient of blood of all types, thus distorting the original intention of the argument.


Hope it will be helpful!

tocean0222

以下是引用albert在2003-7-3 11:52:00的发言：
thank you, tocean0222
But I can't catch what you mean...
what is the difference between

"type o blood can be given to any recipient of blood of all types"

and

" its compatibility to the blood type of most people"

Could you please explain it again?

ok,the blood type of most people , not mentioned in the passage, can be either different types or just one certain type, such as blood type A;so, if type o blood matches the type of most people, it is possible that type o blood is merely compatible with  one certain type of blood.

I think the difference is obvious!

tocean0222

yeah, but also need to change "type " to "types"...

[此贴子已经被作者于2003-7-4 0:54:23编辑过]