向现有市场销售现有产品属于（）。 ["产品多样化策略","市场扩张策略","产品扩张策略","市场渗透策略"]
简述打孔灌注桩工程量计算规则。
压力机隔离保护装置有哪些？
某商业银行的客户经理小王，近期将销售一款新的理财产品，请问以下哪项不属于小王必须具备的条件。（） ["准确选择目标客户群体","将必备的产品知识与客户需求准确结合","受过高等教育","使用恰当的销售方法"]
Overcarriage is best prevented by（）. ["assuring heavy cargo is stowed low in the vessel","checking the vessel's load line calculations carefully","inspection of the hold at completion of discharge","stowing the cargo which is to be discharged last on the bottom"]
压力机的安全保护装置主要有哪几类？
