单选题
Although the sensory receptors and brain pathways for taste and smell are independent, the two senses do interact. A great deal of what we consider taste is actually smell. If the sense of smell is obstructed, as by a head cold, the perception of taste is sharply reduced. 1. The word obstructed in the passage is closest in meaning to
【正确答案】
D
【答案解析】Obstructed means blocked in this context. Clues: ...what we consider taste is actually smell. If the sense of smell is , as by a head cold, the perception of taste is sharply reduced," the prefix ob-= against; the stem -struct- = build.