【题目】Can you tell the ________ difference between the words “require” and “request”? I sometimes get puzzled by their meanings.
A. dramatic
B. regional
C. apparent
D. subtle
在线课程【答案】D
【解析】句意为：你能区分“require”和“request”的细微差别吗……，D项意为“细微的”，符合句意。A项意为“戏剧性的”，B项意为“地域性的”，C项意为“显然的”，都与句意不符。