问题
填空题
调整喇叭音调时，先松开（）螺母，并转动（），调整该盘与铁芯之间的间隙。间隙小，会使振动膜的振动频率高，喇叭的音调也随之提高反之则使音调降低。
答案
参考答案：锁紧；调整螺柱
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调整喇叭音调时，先松开（）螺母，并转动（），调整该盘与铁芯之间的间隙。间隙小，会使振动膜的振动频率高，喇叭的音调也随之提高反之则使音调降低。
参考答案：锁紧；调整螺柱
| 完形填空 "Where is the university?" This is a question that many visitors to Cambridge ask. But no one can give them a l___ answer, for there is no wall to be found 2 the university. The umversity is the city. You can find classroom buildings, 3 , museums and offices of the university all over the city. And most of its members are the students and 4 of the thirty-one colleges. Cambridge was already a (n) 5 town long before the first students and teachers arrived 800 years ago. It grew up by the river Cranta, and the river was once 6 the Cam. A 7 was built over the river as early as 875. So the town got its name "Cambridge". In the fourteenth and fifteenth centuries more and more land was used for college buildings. The town grew much 8 in the nineteenth century after the opening of the railway in 1845. Cambridge became a 9 in 1951 and now it has a population of over 100,000. Many young students in other countries 10 to study at Cambridge. It has become a famous place all around the world. | ||||
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