组成IPSEC的主要安全协议不包括以下哪一项：()
A. ESP
B. DSS
C. IKE
D. AH
查看答案
Which of the following best describes the organization of the passage？
An argument is put forth and evidence for and against it given.
B. An assertion is made and opposing evidence presented.
C. Two hypotheses are described and shown to inconsistent with one another.
D. A phenomenon is identified and illustrations of this phenomenon offered.
E. A specific case of a phenomenon is discussed a generalization drawn.
为防止发生意外和不可预知因素的影响，供应活动收到阻碍时，需要有安全库存，以保证生产的正常运行。()
废弃物按来源分类，可分为()
A固体废弃物
B生活垃圾
C产业垃圾
D环境垃圾
不属于销售物流的输入文件的有()。
A社会需求文件
B库存文件
C生产企业文件
D送货计划
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