单项选择题


A．direct
B．immediate
C．vertical
D．straight
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问答题
For this part, you are to write an essay on the topic Computer Network in three paragraphs. You are given the first sentence of each paragraph. Your part of the composition should be about 120 words, not including the words given. You should write this composition on the Composition Sheet. Computer Network 1) Computer networks have enabled us to do a number of things more easily and quickly. 2) However, if not properly dealt with, Internet would bring problems too. 3) Therefore, the safety of networks has increasingly become a public concern.
单项选择题
People who are unhappy ______.
A．always consider things differently from others
B．usually are influenced by the results of certain things
C．can discover the unpleasant part of certain things
D．usually have a fault -finding habit
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