The political science of international relations is renowned for being a _____ subject; beyond a few governing principles ,very little is graced with universal agreement.
A.fractious
B.divisive
C.difficult
D.lucrative
E.convoluted
F.significant
选出符合句意的两项,答案选的是AB,我想问问为什么E不对啊,A不是易怒的意思么?怎么样都不能拿来修饰subject吧