[讨论]大家节日快乐！讨论一道题目吧！

       Ounce for ounce,blends of different artificial sweeteners match any individual artificial sweetener in sweeting

power.When used to sweeten food, blends greatly decrease the likelihood that consumers will exceed acceptable

daily  intakes for individual sweeteners.Blends should therefore be used,rather than single sweeteners alone,since

blends are clearly more healthful, yet equally effective.

A, When ingested together,different artificial sweeteners in the blends do not interact in a way that makes them harmful to human health.

E.The ill effects on health produced by the intakes of excessive quantities of any single artificial sweetener cannot be reversed by reducing intake later.

逻辑我总是不在行啊~ 用取非做的，A觉得挺对，E也觉得还行，做后还是选错了。 答案选A.  请教下大家是怎么做的。。。解释下E吧，多谢了！！！