专利申请时，如果审察员认为人类现有的技术手段不可能实现申请者所描述的结果而不给予授权，这体现了（）。
A、技术性
B、实用性
C、创造性
D、新颖性
不相关多元化
L/C注明中转，无需另行申报。
A、对
B、错
简述中国在21世纪前期解决就业问题的主要措施。
An administrator is troubleshooting a communication issue between two computers on the same Layer 2 switch. Which of the following is the BEST way to determine if the switch is causing the issue?（）
A、Setup an ACL that allows and logs all IP traffic between the two computers
B、Configure a spanning tree to check for a loop
C、Setup a span port on the switch to watch for CRC errors
D、Connect both computers using a crossover cable