问题
填空题
为了克服机箱内部电磁干扰对于声卡音质的影响，SONY和PHILIPS公司推出了 SPDIF接口。大多数声卡能够支持SPIDF OUT功能，输出信号用来连接 【19】 。
答案
参考答案：数字式音箱。
解析：使用SPIDF OUT连接数字式音箱可以实现纯数字音频回放，使用数字式音箱内部自带的D/A转换器解码，减小了计算机给声音带来的干扰。
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为了克服机箱内部电磁干扰对于声卡音质的影响，SONY和PHILIPS公司推出了 SPDIF接口。大多数声卡能够支持SPIDF OUT功能，输出信号用来连接 【19】 。
参考答案：数字式音箱。
解析：使用SPIDF OUT连接数字式音箱可以实现纯数字音频回放，使用数字式音箱内部自带的D/A转换器解码，减小了计算机给声音带来的干扰。
The bullet (子弹头) train D106 from Changsha to Shanghai has a short stop in Quzhou for only one minute. Named 21 the letter D, the new trains run at speeds of 200 to 250 kilometers one hour. This is much 22 than Z-type and T-type trains. For example, it 23 take people 12 hours to travel from Shanghai to Beijing. But now it only 24 10. The most interesting part of the bullet trains is the revolving (旋转的) seats. People can adjust (调整) their seats as they like, so that it is 25 for you to talk with others around you face to face. The new trains run 26 big cities. They 27 the long trips much faster and more comfortable. However, many passengers still won’t choose the bullet trains 28 some reasons. The ticket 29 of the bullet trains are much higher. For example, a hard seat ticket from Beijing to Jinan is only 90 yuan for T-type trains. But on the bullet trains all the seats are 30 . And they cost 153 to 184 yuan. On the other hand, the bullet trains don’t stop at small stations.
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