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容易出现代谢性酸中毒
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诊断慢性呼吸衰竭最重要的依据是
You are the administrator of a SQL Server 2000 computer. The server contains a database named Sales. The database is configured as shown in the exhibit.
In the last six months, the database has grown by 4 GB. Users report that query response time has slowed. The options set up on the database are shown in the Database Options exhibit.
You want to accelerate query response time. What should you do？
You are the administrator of a SQL Server 2000 computer. You create several jobs on the server and schedule them to run during the evening.
You configure an operator on the server and configure the jobs to send an e-mail to this operator if a job fails for any reason.
While testing the jobs, you discover that e-mail messages are not being sent to the operator when a job fails. You use SQL Server Enterprise Manager to confirm that SQL Mail is started.
You need to ensure that e-mail messages are sent to the operator whenever a job fails. What should you do？
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)
The word conservation has a thrifty(节俭) meaning. To conserve is to save and protect, to leave what we ourselves enjoy in such good condition that others may also share the enjoyment. Our forefathers had no idea the human population would increase faster than the supplies of raw materials; most of them, even until very recently, had the foolish idea that the treasures were "limitless" and "inexhaustible". Most of the citizens of earlier generations knew little or nothing about the complicated and delicate system that runs all through nature, and which means that, as in a living body, an unhealthy condition of one part will sooner or later be harmful to all the others.
Fifty years ago nature study was not part of the school work; scientific forestry was a new idea; timber was still cheap because it could be bought in any quantity from distant woodlands; soil destruction and river floods were not national problems and nobody had yet studied long-term climatic cycles in relation to proper land use; even the word "conservation" had nothing of the meaning that it has for us today.
For the sake of ourselves and those who will come after us, we must now set about repairing the mistakes of our forefathers. Conservation' should, therefore, be made a part of everyone's daily life. To know about the water table in the ground is just as important to us as a knowledge of the basic arithmetic formulas. We need to know why all watersheds need the protection of plant life and why the running current of streams and rivers must be made to yield their full benefit to the soil before they finally escape to the sea. We need to be taught the duty of planting trees as well as of cutting them. We need to know the importance of big, mature trees, because living space for most of man's fellow creatures on this planet is figured not only in square measure of surface but also in cubic volume above the earth. In brief, it should be our goal to restore as much of the original beauty of nature as we can.
The author's attitude towards the current situation in the exploitation of natural resources is______
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