1．We can learn from the text that a computer can ______.
A. be best used as a calculating device
B. be best used in word processing
C. find uses almost everywhere
D. have intelligence of its own
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From the text, we learn that in 1985 ______.
A. Microsoft released their first version of Windows at $100
B. Microsoft gave another version of MS-DOS 3.2
C. Microsoft sold its shares to the public first
D. All of the above
What was not true of the first electronic computers？
A. Harvard MK I was general-purpose electromechanical programmable computer.
B. Colossus used electronic valves.
C. They used punched cards for their main, non-volatile storage.
D. Scientists in the U. K. and the U. S. A worked together in 1943 to develop the first electronic computers.
增值税专用发票由（）印制。
A. 国务院税务主管部门指定的企业
B. 地方人民政府主管部门指定的企业
C. 省、区、直辖市地方税务局指定企业
D. 省、区、直辖市国家税务局指定企业
5．We can infer that ______.
A. there will be no distinction between micros and mainframes in the future
B. a future computer can use several CPUs to work for it at the same time
C. the fifth generation computer will be produced within 2 years
D. electronic computers will soon be out of date
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