GWD- 29-Q40的讨论没有看到，好像有两个答案吧

shanexwang

    

GWD-29-Q40

    

Mice that have been given morphine are very likely to
develop blood poisoning because bacteria that normally reside in the intestine
typically respond to morphine by migrating into the bloodstream.  However, when mice are given both morphine
and the new drug naltrexone, blood poisoning is much less frequent, although it
does still occur.  These results provide
support for researchers’ prediction that naltrexone will turn out to be toxic
to certain types of bacteria.

    

 

    

Which of the following, if discovered to be true, would most
seriously weaken the support for the researchers’ prediction?

    

 

    

1. After
        being administered to mice, naltrexone does not pass from the bloodstream
        into the intestine.
2. Naltrexone
        inhibits morphine from triggering the migration of intestinal bacteria
        into the bloodstream.
3. Mice
        that have been given naltrexone but not morphine have no greater risk of developing
        blood poisoning than do mice that have not been given either substance.
4. The
        increased risk of blood poisoning is not the only harmful effect on mice
        of being given morphine.
5. Conditions
        other than the presence of intestinal bacteria in the bloodstream can
        cause blood poisoning in mice.B==〉并不是Naltrexone抑制吗啡的释放细菌的功能，提供他因 /E其他的条件导致blood poisoning，也是提供他因，两个答案觉得都可以，搜索以前的帖子没见到讨论。。。