[单选] Which of the following is false?（）

A . A company should develop a SMS and implement it
B . A company implementing a SMS properly may obtain a DOC
C . Once a company obtains its DOC, each vessel of this company will obtain a SMC
D . DOC is valid for 60 months unless “major non-conformity” is found

跨境金融服务是通过何种方式与合作银行配合，达到良好服务客户的效果（）。首问负责制。联合团队。邮件。微信群。纵列式动车段（所）的缺点为（）。工序质量分析的意义是什么？治理黄河的关键是（）治理泥沙。加固黄河大堤。防治凌讯。开挖活动河道。对生产制造过程有哪些具体要求？ Which of the following is false?（）

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