推广了这么多年，近视率越来越高 doesnt mean it's ineffective.

送交者: Enlighten 于 2007-04-30, 11:31:13:

回答: 全国推广总是要动用国家资源的由 Latino2 于 2007-04-30, 11:26:54:

because they can argue that without it, it would be even higher.

Come on, you all know full well that only controlled experiment can decide.

Let's not lower our standard to the people who blindly promote YanBaoJianCao.

推广了这么多年， 近视率越来越高 doesnt mean it's ineffective.