来自动植物疫区的船舶、飞机、火车，经检疫发现有禁止进境的动植物、动植物产品和其他检疫物的，口岸出入境检验检疫机构必须进行封存或者销毁处理。( )
参考答案：对
导叶剪断销剪断的原因有哪些？
Most Computer operating systems in use today, including all consumer-targeted systems, include a TCP/IP（）.
A.plan
B.requirement
C.implementation
D.design
