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【单选题】
Every candidate for certification as electro-technical officer shall be required to demonstrate the ability to operate______.A.
electrical, electronic and control systems
B.
automatic control systems of propulsion and auxiliary machinery
C.
generators and distribution systems
D.
personal computers
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举一反三
【单选题】4 Questions 3 to 4 are based on the news you have just heard.
A.
Her being misunderstood.
B.
Her medical problem.
C.
Her language ability.
D.
Her British accent.
【单选题】Questions 3 to 4 will be based on the following news item. 3
A.
Bank of Japan’s inaction to the exchange rate change
B.
The rising value of the yen against U.S. dollar.
C.
The withdrawal of U.K. from EU.
D.
The falling value of the yen against U.S. dollar.
【单选题】Questions 3 to 4 are based on the conversation you have just heard.
A.
They were looking after the queen
B.
They were making a lot of noise
C.
They were looking for a new box to live in
D.
They were dancing in a unique way
【单选题】( )是实现多媒体技术的关键,在多媒体计算机的核心技术中,( )的处理是最困难的部分之一。
A.
视频信息处理技术，视频图像
B.
视频信号，视频图像
C.
视频图像，视频信息处理技术
D.
视频图像，视频信号
【判断题】多媒体技术以计算机技术为核心,涉及信号处理技术、通信技术、压缩编码技术、存储技术、硬件支持芯片技术等,是一门处于发展过程中的不断融合各种高新技术的综合性技术。
A.
正确
B.
错误
【单选题】下列 振荡电路可以应用于高频振荡产生方面,并能获得最高的频率稳定度。
A.
LC 振荡器 LC振荡器
B.
RC 振荡器 RC振荡器
C.
晶体振荡器
D.
声表面振荡器
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