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【单选题】
在整个软件维护阶段所花费的全部工作中,()所占比例最大A.
校正性维护
B.
适应性维护
C.
完善性维护
D.
预防性维护
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【单选题】The scientists discovered DNA that _____belonged______to the phone's speaker on each of the phones
A.
moved
B.
changed
C.
belonged
D.
turned
【简答题】听力原文：Man: I discovered at an early age that I only did well at something if I enjoyed doing it. I didn't like maths at school so I never got good results, but sport was different. So, now I work for E...
【简答题】[选做题]在4-1和4-2两题中选答一题. 4-1.补充完成“按权展开式”: ____ 答案: 4-2. 某班从甲、乙、丙三名候选人中选举一名学生代表,每张选票上只能选一人或不选.全班50名同学都参加了投票,得票情况如图,则学生乙的得票数是____.
【单选题】—Did you have a good May Day holiday? —________. We enjoyed ourselves in the Summer Palace. [ ]
A.
I'm not sure
B.
I hope so
C.
Of course
D.
I'm afraid not
【简答题】12 Passage Three Questions 23 to 25 are based on the passage you have just heard. 23.A)They help us see the important values of a culture. B)They guide us in handing human relationship. C)They help us...
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