题目内容

设计T形接头的焊脚尺寸K,焊缝金属的许用应力[τ′]为100MPa,作用力F=7500N,焊缝长度为10mm。

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园林树木裸根栽植时,根系可能会拳曲,应将其(),带土球移栽时,对紧密绑扎物应()。

实验动物寄生虫对实验研究的干扰主要表现在掠夺宿主的营养,而使动物消瘦,对动物生理、生化和免疫系统无明显影响。

A. 正确
B. 错误

实验动物寄生虫对实验研究的干扰主要表现在掠夺宿主的营养,对机体产生机械性损伤、毒性作用,以及对生理、生化和免疫系统产生影响,对动物产生搔扰。

A. 正确
B. 错误

You have a server that runs Windows Server 2003 Service Pack 2 (SP2). The server has one hard disk that contains one volume. You need to receive a notification when the volume has less than 15 percent free disk space. What should you do? ()

A. Configure a Trace Log by using the File details system provider.
B. Configure a Trace Log by using the Disk input/output system provider.
Configure an Alert by using a counter from the Logical Disk performance object.
D. Configure an Alert by using a counter from the Physical Disk performance object.

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