多媒体网络教室的资源系统是指（） ["师使用的多媒体计算机","生使用的多媒体计算机","控制面板和电子教室","辅助设备资源、学科资源库和素材库"]
Exhibit You create a Web Form for the acceptance of donations. Users type donation amounts by using a TextBox control named txtAmount. The donation amount must be between 10 dollars and 10,000 dollars. You add the following RequiredFieldValidator and RangeValidator. During testing you learn that when users fail to enter values before submitting the Web Form to the server, the message "Please enter a value" appears, as shown in the exhibit. You need to ensure that the message appears immediately following the txtAmount TextBox control without extra spaces. What should you do? （） [" In the RangeValidator, set the Display property to Dynamic."," In the RangeValidator, set the Display property to Static."," In the RequiredFieldValidator, set the Display property to Dynamic."," In the RequiredFieldValidator, set the Display property to Static."]
危险源的危险性评价包括（） ["对危险源自身危险性的评价","对危险源控制措施效果的评价","生产工艺的危险性评价","环境的危险性评价","生产过程的科学性评价"]
管理信息系统的三大支柱是：（）、（）和现代化的管理。
液压系统中的所有故障（）左右是因污染的油液引起的，所用的油液必须经过过滤。 ["60%","70%","80%","90%"]
某企业基本生产车间有一大型精密设备，原值150万元，预计净残值率5%，预计可使用工时为18 000工时。5月份使用该设备生产，耗用了100工时。
采用工作量法计算5月份该设备折旧额并作出折旧的会计分录。
