题目内容

根据系统运行的不同阶段，可以实施不同级别的系统维护，一般来说系统维护的级别主要有哪4种？
(2) 系统的维护不仅范围广，而且影响因素多。在设计系统维护计划之前，通常要考虑哪3方面的因素？

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SECTION B ENGLISH TO CHINESE
Directions: Translate the following text into Chinese.
The disturbance of the soul cannot be ended nor true joy created either by the possession of the greatest wealth or by honor and respect in the eyes of the mob or by anything else that is associated with causes of unlimited desires...We must not violate nature, but obey her; and we shall obey her if we fulfill the necessary desires and also the natural, if they bring no harm to us, but sternly reject the harmful... The man who follows nature and not vain opinions is independent in all things. For in reference to what is enough for nature every possession is riches, but in reference to unlimited desires even the greatest wealth is not riches but poverty.
Insofar as you are in difficulties, it is because you forget nature; for you create for yourself unlimited fears and desires. It is better for you to be free of fear lying upon a pallet, than to have a golden couch and a rich table and be fall of trouble.

抗震救灾小英雄王浩的感人事迹传开，有厂商出50万请他拍广告，但被其父亲拒绝，有人说这是“傻子行为”。你怎么看？

试述社会公德的含义及其特点。

甲是否有权要求丁返还相机？如果有，则要球返还的条件是什么？请说明理由。