瑜伽的呼吸是（）A、胸式呼吸 B、喉呼吸 C、完全呼吸 D、火焰式呼吸 发布时间：2020-02-14 15:27 │ 来源：www.tikuol.com 题型：单项选择题 问题： 瑜伽的呼吸是（）A、胸式呼吸B、喉呼吸C、完全呼吸D、火焰式呼吸
题型：单项选择题 阅读理解。 During the day we work and play and at night we sleep. Our bodies rest while we sleep. In the morning we are ready to work and play again. It is while we are asleep that our bodies grow most. When children feel tired and angry, they usually need more sleep. We can get our lessons better, and we feel better, too, when we have had plenty of rest. Boys and girls, eight or nine years old, need ten hours of sleep every night. Our bodies need plenty of air when we sleep. If we do not get enough fresh air we wake up feeling tired. While in bed we must not cover our heads. If we do, our lungs（肺）will not get enough fresh air. If we open our windows at night we can have plenty of fresh air. Cool air is better than warm air. Boys and girls must get plenty of sleep if they want to grow and be strong. 1. Our bodies grow most while we are ______. [ ]A. eating B. playing C. sleeping D. exercising 2. Which is the best air for us? ______ air. [ ]A. Hot B. Cool C. Warm D. Dry 3. What often makes us feel tired in the morning? [ ]A. Too much air. B. Not enough fresh air. C. Too much cold air. D. Too much sleep. 4. How can you get plenty of fresh air at night? You can ______. [ ]A. open your windows B. not sleep in bed C. sleep ten hours D. go to bed late 5. The writer is trying to tell boys and girls ______. [ ]A. to get their lessons better B. not to cover their heads C. how to go to bed D. to get plenty of sleep 查看答案
题型：单项选择题 下列关于金属的描述或使用正确的是（ ）A．金属都是银白色的固体B．铝合金门窗变暗不宜用砂纸或钢丝球打磨C．钢铁表面刷漆的主要目的是为了美观D．金属先后被使用的顺序与其在地壳中的含量有关 查看答案