神经网络是模拟大脑工作方式的计算机系统。Neural networks are computer systems which mimic the workings of the brain.他们在吉利根路上翻滚，模拟一场暴力厮杀。They rolled about on the Gilligan Road, simulating a bloodthirsty fight.她说这张模拟画像像极了绑架她的人。She says the art...
P - methoxybenzeneacetonitrile was prepared in 34.8 % yield starting from anisole, via chloromethylation, cyanogenation and fractional distillation.以苯甲醚为原料,经过氯甲基化, 氰化反应后, 通过精馏获得对甲氧基苯乙腈,总收率为34.8%....