第21题: [单项选择]用罗斯蒙特375型手操器将差压变送器量程从0~2000H20修改为500~2500H20时,按照()步骤操作。 A. Derice>Apply Values>Basic Setup>Re-rang B. Derice>Re-rang>Basic Setup>Apply Values C. Derice>Basic Setup>Re-rang>Apply Values D. Derice>Basic Setup>Apply Values>Re-rang 参考答案:C
第35题:[单选题] Preferred channel marks are aids to navigation which all following marks other than ______. A.channel junctions B.bifurcations C.fishing traps D.wrecks or obstructions 参考答案:C 【参考译文】推荐航道标准是下列航标,除了鱼栅标志。 【解 析】preferred channel mark推荐航道标志 channel junction航道交汇 bifurcation航道分叉 wreck沉船 obstruction障碍物