Vessels are warned（）in this area. ["to not anchor","to anchor not","not to anchor","not anchor to"]
Vessels carrying（）must not willfully wash decks or holds. ["general cargo","steel products","harmful cargo","machinery"]
性病艾滋病咨询的作用是什么？
在市场覆盖策略中，采用差异性营销策略的最大问题在于（）。 ["增加了厂商的经营风险","营销成本提高","容易形成几败俱伤的局面","企业的竞争能力难以有效加强"]
Vessels must not “exceed” a speed of 8 knots in this area.（）. ["sail at","except","proceed at","steam over"]
性病艾滋病咨询的目的是什么？
