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Directions: There are four parts altogetherin this test paper. The total scol-e is 100, and the test time is limited to 3hours.
Part I. Vocabulary and Structure (20points)
Directions: There are 20 incompletesentences in this part. For each sentence there are four choices marked A), B),C) and D). Choose the one that best completes the sentence. Then mark thecOlTesponding letter on the Answer Sheet with a single line through the centre.
J. "Infon11ation ___" would meandisabling an enemy by making use of computer viruses to wreck itscomputer-controlled systems.
A. ll1vasion B. explosion C. contest D.warfare