问题
选择题
要用鼻呼吸是因为[ ]
A．鼻腔可以过滤、湿润和温暖吸入的气体
B．鼻腔是气体进出肺的唯一门户
C．可以通过鼻腔黏膜，感受气味的刺激
D．鼻腔可以多吸入氧气
答案
答案：A
搜题请搜索小程序“爱下问搜题”
要用鼻呼吸是因为[ ]
A．鼻腔可以过滤、湿润和温暖吸入的气体
B．鼻腔是气体进出肺的唯一门户
C．可以通过鼻腔黏膜，感受气味的刺激
D．鼻腔可以多吸入氧气
答案：A
Is it difficult for you to get up in the morning? Do you sometimes oversleep? Do you often 26 late? Yes? Then Hiroyuki Sugiyama of Japan invented a 27 bed for you. His bed will wake you up! Here is 28 it works. There is an alarm clock and a recorder（录音机） in the bed. When the clock 29 a sound, you’ll have a few minutes to wake up. Then the recorder plays light music with a little girls’ 30 voice. She says quietly, “Wake up, my dear.” A few 31 later, a second recording plays. It can be unpleasant sounds, “Wake up, 32 you’ll be late!” If you don’t get up after the 33 recording, you’ll be sorry. There is a mechanical (机械的) “ 34 ” in the bed. It can kick（踢） you in the head. Then the bed 35 for a few more minutes. What? You’re 36 lying in bed! Slowly the top of the bed goes 37 . The end of the bed goes lower and lower. 38 the bed is straight. You slide off(滑下)the bed and fall onto the 39 . You are 40 the bed and awake.
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