简述教学过程的主要特点。
生产上，棉花旺长可摘除（）。 ["叶枝","果枝","混合枝","中上部分枝"]
未按规定使用货位牌、隔离红带或货位示意图、货位牌与实际货位不符，属于（）问题。 ["红线","A1","A2","B"]
经过选别后产品中有用成份含量很少，或没有进一步处理价值的产品叫（）。 ["中矿","原矿","尾矿","精矿"]
What is true about IP Source Guard with port security？（） ["Binding should be manually configured.","It is not supported if IEEE 802.1x port-based authentication is enabled.","The DHCP server must support option 82， or the client is not assigned an IP address.","It filters based on source IP address only."]
肌肉的激活状态
