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发现锅炉严重缺水，应当先进水，如发生异常立即停炉。()

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简述供应链管理涉及的内容和供应链管理的目标。

请你谈谈当前农民负担过重问题。

SECTION B ENGLISH TO CHINESE
Directions: Translate the following text into Chinese.
Resignation is of two sorts, one rooted in despair, the other in unconquerable hope. The man who has suffered such fundamental defeat that he has given up hope of serious achievement may learn the resignation of despair. and if he does, he will abandon all serious activity. He may camouflage his despair by religious phrases, or by the doctrine that contemplation is the true end of man, but whatever disguise he may adopt to conceal his inward defeat, he will remain essentially useless and fundamentally unhappy. The man whose resignation is based on unconquerable hope acts in quite a different way. Hope which is to be unconquerable must be large and impersonal. Whatever my personal activities, I may be defeated by death, or by certain kinds of diseases; I may be overcome by my enemies; I may find that I have embarked upon an unwise course which cannot lead to success. In a thousand ways the failure of purely personal hopes may be unavoidable, but if personal aims have been part of larger hopes for humanity, there is not the same utter defeat when failure comes.

阅读以下说明，回答问题。
[说明]
某企业已有一个信息系统(旧系统)，但由于该系统无法满足业务发展，所以该企业决定投资建设一个新的信息系统(新系统)，以取代旧系统。为保证新旧系统的转换不影响原有业务的开展，并将可能的损失降到最低，必须采用合适的系统转换方式。
常见的新旧系统转换方式有平行转换方式、直接转换方式、分阶段转换方式，请说明三种方式的优缺点和适用情况。