Your company has an Active Directory domain named contoso.com. The company network has two DNS servers named DNS1 and DNS2. The DNS servers are configured as shown in the following table. Domain users， who are configured to use DNS2 as the preferred DNS server， are unable to connect to Internet Web sites. You need to enable Internet name resolution for all client computers. What should you do（） ["Create a copy of the .（root） zone on DNS1.","Update the list of root hints servers on DNS2.","Update the Cache.dns file on DNS2 Configure conditional forwarding on DNS1.","Delete the .（root） zone from DNS2. Configure conditional forwarding on DNS2."]
简述酶的生产方法
试述工伤的范围。
合同双方当事人在合同纠纷发生之前或发生之后可以协议的方式选择解决他们之间纠纷的管辖法院，但当事人在协议选择管辖法院时不得违反民事诉讼法（）。 ["对地域管辖的规定","对指定管辖的规定","对级别管辖和专属管辖的规定","对移送管辖的规定"]
检查机械传动的齿轮箱、液压油箱等的油位（） ["标准的80%","标准的110%","符合标准","无要求"]
某房地产项目建设期为2年，第一年年初投资150万元，第二年初投资100万元，第三年开始投产并达到100%设计能力。每年销售收入200万元，经营成本140万元，销售税等支出为销售收入的10%。计算静态的全部投资回收期。
