In two thousand one, genetically modified corn made by Syngenta was found in the food supply chain without approval.
VOA: special.2011.03.08
So if you flip the info page over on the back here, what you'll see is the periodic table, this is the same one that I've handed out in the last two lectures - the periodic table without any electron configurations.
将这张纸翻过来,你可以看到一个元素周期表,这与我们前两次课发过的,是一样的,-没有任何电子排布的周期表。
The point is just if I can at least imagine the one thing without the other, they must in fact be two separate things.
我们要讨论的是,至少如果我可以想象,某物独立于另一物存在,那么它们就肯定彼此不同
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