接触器的文字符号是（）。 ["KM","KS","KT","KA"]
智力外流
患者，男性，54岁，在草丛中行走时不慎被蛇咬伤，小腿部留下一对大而深的牙痕，且伤口出血不止，周围皮肤出现瘀斑和血疱。为减慢毒素的吸收，伤肢应（） ["制动并下垂","局部按摩","局部热敷","使患肢与心脏同一高度","抬高患肢"]
In which phase is the staff training development for Cisco Unified Communications planned（） ["Design","Implement","Plan","Prepare"]
社会分层
滚动摩擦机理
