语法与词汇19.The topic of Corporate Finance/Capital Markets is, even within the world of the Dismal Science, (Economics) an exceptionally dry and boring subject matter, encumbered by complex mathematic models and obscure economic theory.
【正确答案】
B
【答案解析】本题考查动词辨析。根据exceptionally dry and boring和横线后的by complex…and obscure…可知，极其枯燥乏味与复杂的模型和模糊的经济理论有关，impede意为“阻碍，延缓”，符合题意，故[B]项为答案。celebrate意为“庆祝”。control意为“控制，支配；克制，抑制”。retort意为“反驳，回嘴”。encumber意为“妨碍，阻碍”。