Question

The words “racecar”， “kayak” and “level” are the same  ________ they are read left to right or right to left.

A.since B.though C.unless D.whether

Answer

D

【解析】

考查从属连词词义辨析。句意为：“racecar”、“kayak”、“level”这些单词它们不论从左向右读还是从右向左读都是一样的。since自从，既然；though尽管；unless除非；whether是否。whether...or...无论……或者……，为固定搭配。故选D。