If at any time the officer in charge of th

题型:单项选择题

问题:

If at any time the officer in charge of the navigational watch is to be relieved when a manoeuvre or other action to avoid any hazard is taking place,().

A.the relief of that officer shall be made prior to such action has been completed

B.the relief of that officer shall never be made

C.the relief of that officer shall be deferred until such action has been completed

D.the relief of that officer shall be made by the captain

考点:航海英语STCW公约的有关内容STCW公约的有关内容题库
题型:单项选择题

男婴,6个月,生后人工喂养,未加辅食,查体:体重5kg,发育营养差,皮肤粘膜显苍白,心前区Ⅱ级收缩期杂音,肝肋下3cm,脾肋下1cm,Hb66g/L,RBC2.5×1012/L,WBC、血小板及网织红细胞均正常。

有助于诊断的检查下列哪项首选()。

A.血清铁蛋白测定

B.血清叶酸和维生素B测定

C.父母和孩子血型测定

D.血红蛋白的电泳检查

E.总铁结合力测定

题型:单项选择题

在同一平面上有a、b、c三根等间距平行放置的长直导线,依次载有电流强度为1A、2A和3A的电流,各电流的方向如图所示。导线b所受的合力方向向_____。

题型:单项选择题

安装压力表时,应安装在盘形管上。

题型:单项选择题

软件结构中各模块之间相互连接关系的一种度量常称为模块的【 】。

题型:单项选择题

安装在机车上的下列设备,哪些不属于电务部门负责()。

A.机车信号电源接收盒

B.机车色灯信号机

C.列车无线调度通信设备

D.机车信号感应线圈

更多题库