2000年某国商品出口总额2492.11亿美元,比上年增长了27.8%,进口总额4378.27亿美元,比上年增长了35.9%。从地区的情况来看,东部地区出口总额2261.13亿美元,比上年增长27.5%,进口总额2250.96亿美元,比上年增长35.9%;中部地区出口总额为155.38亿美元,比上年增长33%,进口总额2063.50亿美元,比上年增长37.3%;西部地区出口总额75.60亿美元,比上年增长28%,进口总额63.81亿美元,比上年增长7.7%。 1999年某国商品出口总额为多少亿美元( )
A. 1893.87
B. 1950.00
C. 2009.67
D. 2003.7
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MIDI enables people to use (66) computers and electronic musical instruments. There are actually three components to MIDI, the communications " (67) ", the Hardware interface and a distribution (68) called "Standard MIDI Files". In the context of the WWW,the most interesting component is the (69) Format. In principle, MIDI files contain sequences of MIDI Protocol messages. However, when MIDI Protocol (70) are stored in MIDI files, the events are also time-stamped for playback in the proper sequence. Music delivered by MIDI files is the most common use of MIDI today.
A. personal
B. electronic
C. multimedia
D. network
日用品、服装、电脑、手机等有形商品的网上销售称为完全电子商务或直接电子商务。
A. 对
B. 错
耐心细致、优质服务是旅游业最重要和最具行业特色的道德规范和业务要求,()+()=优质服务。
电子商务的采用使得信息功能在现代商品流通中占主导地位、起基础性作用
A. 对
B. 错