冰川侵蚀作用？侵蚀地貌类型？
Which command should you use to verify what networks are being routed by a given OSPF process（） ["show ip ospf","show ip route","show ip protocol","show ip ospfdatabase","None of the other alternatives apply"]
甲型留班病毒可感染多种动物，为人类流感的主要病源。
声调
“东方”一词来源于？（） ["日本","印度","中国","希腊"]
指出下列句中的古今字并说明意义是亡荆国之社稷而不恤吾众也。
