10, 错误原因是没看懂最后一句。 What must, of course, be shown, in order to avoid excessively restrictive controls, is that ____. 正确B:any substance to be made subject to controls can actually cause environmental damage
19,在ce中犹豫,最后选了错误的e。而且c看起来也太“容易”了,反而没选。 其实c有陷阱 c说,nobody can gain access to a computer equipped with the software solely by virtue of skill at forging signatures. 陷阱就是forging signatures,我做题时候的理解,认为forging signatures就是模仿原文中说到的一切(form,pressure,speed),但是看解释说skill at forging signatures is not enough to allow someone to gain access to a computer equipped with the software。也就是说GMAC定义的“forging signatures”只是模仿form,并不包括pressure和speed。 唉。很无语的一道题。不懂forging signatures的(狭义)定义怎么可能做得出来。