2. 外语
  3. A major role of computer science has been to alleviate problems, mainly by making computer systems cheaper, faster, more reliabl

A major role of computer science has been to alleviate problems, mainly by making computer systems cheaper, faster, more reliabl

admin2011-02-26  101
问题 A major role of computer science has been to alleviate problems, mainly by making computer systems cheaper, faster, more reliable, and easier to use.
选项 A、exclude
B、lessen
C、clarify
D、evade
答案B
解析
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