在多媒体的音频处理中,由于人所敏感的音频最高为(14)赫兹(Hz),因此,数字音频文件中对音频的采样频率为(15)赫兹(Hz)。对一个双声道的立体声,保持一秒钟声音,其波形文件所需的字节数为(16),这里假设每个采样点的量化位数为8位。MIDI文件是最常用的数字音频文件之一,MIDI是一种(17),它是该领域国际上的一个(18)。
A. 控制方式
B. 管理规范
C. 通信标准
D. 输入格式
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The workmanship of the Supernote was extraordinary. It had sequential serial numbers, and the printing plates continued to be refined. A Secret Service agent identified Kelly" s two samples as Supernotes by three minuscule imperfections. Even when the flaws were pointed out, Kelly says, " I frankly couldn" t see the damn imperfections. " Most alarming of all, the Supernote was so well engineered that it could fool currency scanners at the nation" s twelve Federal Reserve banks. The black ink on the front of American currency contains ferrous oxide, which is magnetic, and the Fed" s scanners read the magnetic field down the center line of the portrait with such precision that a thousand genuine hundred-dollar bills are rejected for every one that is later found to be counterfeit. Yet, Kelly recalls, " Secret Service told me the bills went through those machines". The Supernote, Kelly learned, had been circulating in Europe, the Far East, the Middle East, and the former Soviet Union, but only limited supply had reached the United States. This was not reassuring. Of the almost three hundred and ninety billion dollars in American paper money now in existence, some two-thirds, or more than two hundred and fifty billion, is in foreign hands. The worldwide popularity of the dollar is a tremendous boon to the United States. The Federal Reserve is fond of pointing out, every bill in circulation is in effect an interest-free loan; an equivalent amount in government securities would cost the United States more than twenty-five billion dollars in annual interest payments. The beauty of bills stuffed in a mattress in Kazakhstan, for instance, is the good chance that the notes will never be called in. The Supernote was by no means the first foreign-made or foreign-distributed counterfeit of American currency, but because of its frightening and unprecedented quality it seemed singularly poised to damage world confidence in the dollar.
某家庭购买了一套价格为39万元的住宅,首期付款为房价的30%,余款向银行贷款,贷款期限为10年,贷款年利率为5%,按月等额还款。 根据题意,回答下列问题: 在办理房地产抵押贷款中,房地产管理部门需要对抵押物进行审查的内容有______。
A. 抵押物价值的大小
B. 抵押权人是否拥有房地产产权
C. 抵押物权证的真伪
D. 抵押物是否已抵押
在多媒体的音频处理中,由于人所敏感的音频最高为(14)赫兹(Hz),因此,数字音频文件中对音频的采样频率为(15)赫兹(Hz)。对一个双声道的立体声,保持一秒钟声音,其波形文件所需的字节数为(16),这里假设每个采样点的量化位数为8位。MIDI文件是最常用的数字音频文件之一,MIDI是一种(17),它是该领域国际上的一个(18)。
A. 44.1k
B. 20.05k
C. 10k
D. 88k
在多媒体的音频处理中,由于人所敏感的音频最高为(14)赫兹(Hz),因此,数字音频文件中对音频的采样频率为(15)赫兹(Hz)。对一个双声道的立体声,保持一秒钟声音,其波形文件所需的字节数为(16),这里假设每个采样点的量化位数为8位。MIDI文件是最常用的数字音频文件之一,MIDI是一种(17),它是该领域国际上的一个(18)。
A. 50
B. 10k
C. 22k
D. 44k