A fishing vessel is approaching a vessel not under command. Which statement is TRUE? ()
A. The fishing vessel must keep clear of the vessel not under command
B. If the vessel not under command is a power-driven vessel,she must keep clear of the fishing vessel
C. They must exchange whistle signals
D. Both vessels are required to take action to stay clear of each other
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综合应用三角测量和三边测量确定各顶点平面位置的测量方法为边角测量。
A. 正确
B. 错误
门卫要依据客人单位有关会客登记制度严格履行(),严禁无关人员入内。
A. 会客程序
B. 登记手续
C. 会谈记录
D. 检查制度
政府风险是由于税收、法律环境等方面的变化所导致的对证券价格的影响。
A. 正确
B. 错误