单选题 It is more ______ and healthlul to live in the countryside than in town.

【正确答案】 C
【答案解析】形近义近词辨析。本题最强干扰项为B。economic和economical都有“经济学的,经济上的”之意,但economical还作“节俭的,节约的”讲,而economic则无此意。故根据题意,只能选C。