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（）是指地层流体（天然气、石油、地层水）无控制的进入井内，使井内钻井液喷出井口。

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银行承兑汇票到期，承兑申请人如无款支付，承兑银行应（）

A. 待承兑申请人账户有款后再行支付
B. 代付票款，对承兑申请人应收取的款项按逾期贷款处理
C. 退回单证，由收付款双方自行解决
D. 进行经济诉讼

As a Network Engineer in an iternationai corporation, you are familliar with the Cisco products, services and solutions. Which of the following statement describes one of the charactersties of the Cisco validated Design (CVD) architectural selling approach?（）

A. This approach does rot support verticalization although It is aligned to partner programs.
B. This approach integrates solutions by combining technologies that are aligned to customer buying patterns.
C. This approach is not aligned to partner programs although it supports verticalization.
D. This approach separates technologies on the basiss of customer buying patterns.

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建设施工企业应当为施工现场从事施工作业和管理的人员，在施工活动过程中发生的人身意外伤亡事故提供保障，办理建筑意外伤害保险，支付保险费。

A. 正确
B. 错误

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健康行为“四不”是指什么？

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