题目

下列生产实践中的做法和原理对应不正确的是（ ） A . 催芽时，水不能没过玉米籽粒-提供充足氧气，促进种子发芽 B . 将新鲜的果蔬放在冰箱中并加封保鲜膜-促进果蔬呼吸作用 C . 中耕松土-促进植物根的呼吸作用 D . 小麦种子晒干入仓-降低小麦种子的呼吸作用 答案：B10．"The chair is out to kill us，"says James Levine，a professor at the Mayo School of Medicine．Most of us have years of sitting experiences，considering ourselves quite good at it．（36）GBut unfortunately，a good deal of data suggests that we're off our chairs to spend so much time on the vast variety of other seats where we're fond of parking our bottoms．Here are some things that scientists have learned about the insidious（潜伏的）nature of sitting．Sitting position has gone wrong．（37）ACertainly people have done that for thousands of years．But lately，not so much．In general，scientists believe，Americans now sit for more than half of their walking hours．Sadly，the sitting position exerts force on the body which can lead to a lot of trouble including poor circulation（血液循环），aches and pains．　　Make people become too fat．We're not using much energy when we're sitting still．（38）BIt is also just another way of saying"watch out for extra pounds．"It is mainly the chair that has caused the increase in obesity rates．A person with a desk job may burn 300 calories a day at work，but the same person might burn 2，300 calories a day in jobs that require considerable physical efforts．In other words，we need more walking to burn more calories．（39）ESitting at your desk and working hard for hours on end can increase your chances of getting a promotion．（40）FWhen comparing people who spent the most time sitting with those who spent the least time sitting，researchers found more sitting increases the risks of death from all causes．A．The human body is designed for walking．B．That is just another way of saying"we are not burning many calories"．C．They ought to work out to build their bodies．D．We should be more patient and work longer than before．E．Realize the damage．F．But it also brings people diseases or even early death．G．We will say nature intends us to do it．