The unexplained digressions into the finer points of quantum electrodynamics
are so ________ that even readers with a physics degree would be wise to keep a
textbook handy to make sense of them.
A uninteresting
B controversial
C unsophisticated
D frustrating
E humorless
我选的B,答案 D 我觉得空格至少不应该是个负评价词吧~求解~顺便吐槽:section 4的填空做的好坑爹
我咋觉得是因为太难啊...所以Frustrating了...even readers with a physics degree would be wise to keep a textbook handy to make sense of them. 连科班出身都得整本书在旁边随时参考...正跟感情色彩没关系吧...