One of the limiting factors in human physical performance is the amount of oxygen that is absorbed by the muscles from the bloodstream. Accordingly, entrepreneurs have begun selling at gymnasiums and health clubs bottles of drinking water, labeled "SuperOXY," that has extra oxygen dissolved in the water. Such water would be useless in improving physical performance, however, since the only way to get oxygen into the bloodstream so that it can be absorbed bye the muscles is through the lungs. oxygen into the bloodstream so that it can be absorbed bye the muscles is through the lungs. oxygen into the bloodstream so that it can be absorbed bye the muscles is through the lungs.
Which of the following, if true, would serve the same function in the argument as the statement in boldface? A. the water lost in exercising can be replaced with ordinary tap water B. the amount of oxygen in the blood of people who are exercising is already more than the muscle can absorb C. world-class athletes turn in record performance without such water D. frequent physical exercise increases the body抯 ability to take in and use oxygen E. lack of oxygen is not the only factor limiting human physical performance
A. the water lost in exercising can be replaced with ordinary tap water
B. the amount of oxygen in the blood of people who are exercising is already more than the muscle can absorb
C. world-class athletes turn in record performance without such water
D. frequent physical exercise increases the body抯 ability to take in and use oxygen
E. lack of oxygen is not the only factor limiting human physical performance
up
请NN们帮忙解答啊~
这个题主要靠无关判断和类比
题目说机体表现靠肌肉吸收血液中的氧气，公司要卖水，水里有氧，划线部分说氧气只能通过肺，所以是削弱，答案找削弱就行了
A. the water lost in exercising can be replaced with ordinary tap water
so what？反正和lung无关，说的是氧气补充，不是补水
B. the amount of oxygen in the blood of people who are exercising is already more than the muscle can absorb 运动的人氧气已经饱和了 所以不需要氧气 直接削弱
C. world-class athletes turn in record performance without such water
D. frequent physical exercise increases the body抯 ability to take in and use oxygen 直接无关
E. lack of oxygen is not the only factor limiting human physical performance 和题目无关
| 欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |