单选题 Although she {{U}}scrubbed{{/U}} the old pot thoroughly, she could not make it look completely clean.
【正确答案】 B
【答案解析】[分析] 近义词辨析 A.disinfect给……消毒,使洗净;B.scour冲洗,擦亮(尤指用粗糙的东西彻底地擦洗);C.rinse漱口,漂净;D.scratch擦,刮,而scrub表示用力擦洗(尤指用硬刷之类),例:She was on her hands and knees scrubbing the floor. (她趴在地上用力擦洗地板) 因此B为答案。