语法与词汇 The brain is totally dependent on the oxygen______by its blood supply, and brain cells will die if deprived of oxygen for more than a few minutes.
【正确答案】 D
【答案解析】本题考查动词的含义。A生产，产出；B挑选，采摘；C引导，管理；D传送，运输。该句的大意为：大脑完全依赖于血液供给中输送的氧气，如果缺氧超过几分钟，脑细胞就会死亡。