产生于耳蜗，经听骨链和鼓膜传导释放到外耳道的音频能量称为（）。 A.声导纳 B.声阻 发布时间：2017-08-20 10:28 │ 来源：www.tikuol.com 题型：单项选择题 问题： 产生于耳蜗，经听骨链和鼓膜传导释放到外耳道的音频能量称为（）。A.声导纳B.声阻抗C.声导抗D.耳声发射E.以上均不对
题型：单项选择题 完形填空。 I'm in Madrid at the moment, visiting an old friend. It's a lovely city, but I'm having a few problems with 1 ! At home I usually have a small breakfast at seven thircy, then a sandwich 2 lunch at about one o'clock. That's OK-it's about the game here. But I always 3 at about seven in the evening. Not here! In Madrid people usually eat at about ten! In London I'm usually 4 by eleven, but here the streets are full every night until a long time after midnight. My friend says a lot of people go to bed at two or three o'clock in the morning. I don't understand. Everybody is up for work at seven or eight o'clock in the. morning. So when do they 5 ? ( )1. A. meals ( )2. A. for ( )3. A. have tea ( )4. A. get up ( )5. A. work B. the eating times B. at B. have dinner B. go to bed B. have a meal C. the working time C. on C. have a meeting C. in bed C. sleep 查看答案
题型：单项选择题 杰克、奎恩和罗伯特三人，一人是经理，一人是军官，一人是教师。现在只知道，罗伯特比教师的年龄大，杰克和军官不同岁，军官比奎恩的年龄小。请根据以上的条件，确定他们三人的各自身份：A．杰克是经理，奎恩是军官，罗伯特是教师。B．杰克是军官，奎恩是教师，罗伯特是经理。C．杰克是教师，奎恩是军官，罗伯特是经理。D．杰克是教师，奎恩是经理，罗伯特是军官。 查看答案