An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?()
A. IP address:192.168.20.14 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.9
B. IP address:192.168.20.254 Subnet Mask:255.255.255.0 Default Gateway:192.168.20.1
C. IP address:192.168.20.30 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.25
D. IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.17
E. IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.25
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利用与拟建项目类型相同的现有项目的职业病危害因素资料进行类推的识别方法是类比法。
A. 正确
B. 错误
在试油、小修作业中,起下大直径工具(如封隔器)时发生溢流,应采取怎样的关井程序?
实践证明安全重于泰山,安全是家庭幸福的保证,是企业安定的基础,是国家兴旺的根基。
A. 正确
B. 错误
多糖的构象大致可分为()、()、()和()四种类型,决定其构象的主要因素是()。