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2. Complete the sentences with the phrases and expressions from Reading 2. Their meanings and paragraph numbers have been given in brackets.1) The unexpected visitor has disrupted my schedule. I have to_______ late to prepare tomorrow's academic speech. (not go to bed; Para. 5)2) Old age brings with it physical threats, and among the most common is cardiovascular diseases. (a large number of; Para. 5)3) Watching the tides (潮汐)_ so magnificently fills me with an inner contentment that I find nowhere else. (rise and fall; Para. 7)4) Bodybuilding can be very useful, and is highly recommended. reshaping your body, it tends to improve your general well-being. (As well as; Para. 10)5) Competitive sports brought fame and fortune to very few people, but for the vast majority it meant sweat and tears. (only; Para. 11)6) People want to be able to have instant access to reports or books that promise to solve their problems_______. (very quickly; Para. 11)

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B. Complete the sentences by choosing the proper words with the suffix “-ive” or “-ic” from above. Change the form where necessary.1) Now we could avoid risk of a(n) ______ reaction to medication with this new health insurance IC card, because our health data has been stored on the cards.2) You should let go of those_ thoughts in front of hardship, because tomorrow will be a new beginning.3) This sort of evolution has probably helped humans adapt to lots of new foods.4) In the field of academic research, and especially when being confronted with so much superstitious (迷信的) thought, a true_ spirit is highly valued.5) As for human potential, we often think about our_________ abilities; it's our abilities for a more advanced understanding about the world that distinguishes us from animals.

A. Match the following words with the corresponding meanings.

系统维护的内容包括哪些？

A. 程序的维护
B. 数据的维护
C. 代码的维护
D. 设备的维护

统维护的主要工作是对程序的维护。由于对程序维护的原因、要求和性质不同，维护工作分为哪些？

A. 纠错性维护
B. 适应性维护
C. 完善性维护
D. 预防性维护