These sweaters look alike, but their colors are subtly different. The underlined part means _____.
【正确答案】
D
【答案解析】解析：考查副词词义辨析。由前面的look alike，可推测其颜色的区别会很小。subtly在此意为“细微地”，slightly“轻微地”与之意思一致，故选D。A sensitively“敏感地”；B．sophisticatedly“老练地”；C．complicatedly“复杂地”。