班级管理设计的基本要求有哪些?
()透镜由于增大了包容角,所以能提高光源的光能利用率。 弧面型螺纹。 平面螺纹。 麻面螺纹。 磨砂。
Refer to the exhibit. You are setting up a 2-gigabit EtherChannel. Following IEEE standards, the exhibit shows your configuration in a local switch1. However, EtherChannel is not coming up. Which one of these statements could be a possible reason?() EtherChannel is only available in Cisco equipment. 。 The customer side is supposed to be running PAgP, which is a Cisco standard. 。 PAgP is not an IEEE standard. VRRP should be used. 。 The configuration on switch1 needs to be modified to use LACP.&e。
段对始发列车验收,检查2节车厢不合格时(考核车队干部),管理人员()。 红线。 通报批评。 失格。 降档。
隋朝实现统一的经济基础是()。 北方少数民族的封建化。 北方农业的恢复与发展。 江南经济的迅速发展。 南北交通的不断加强。
现代社会体育其目的在于:()