下列设备中,可作为船载LRIT设备的是() A.具有Polling和DataRepo

题型:单项选择题

问题:

下列设备中,可作为船载LRIT设备的是()

A.具有Polling和DataReport业务的Inmarsat-C终端设备

B.GPS接收机

C.VHF

D.HFDSC

考点:航海学航海学(大副)航海学(大副)题库
题型:单项选择题

短文改错 (共10小题;每小题1分,满分10分)

It’s well known which Wilma Rudolph is the first American woman  76. _____

to have won three Olympic gold medal in track! However, when     77. _____

she was young, she was sick most of the time. At four, he couldn’t     78. _____

move her left leg as a result of a serious illness. Followed the      79. _____

doctor’s advice, her mother rubbed her sick leg every day and take  80. _____

her to the hospital once a week. After a year, Wilma could manage     81. _____

a sort of jump. At eight, she was walking a bit at the aid of a      82. _____

walking stick. Soon she was out in the yard playing the basketball.  83. _____

Her mother was surprising to see that. Little by little,        84. _____

Wilma became famous as a track star but won medals.        85. _____

题型:单项选择题

(2011年江苏泰州,24题)根据下列装置图填写有关空格:

A         B       C          D

E      F         G        H                    I

(1)装置A中仪器①的名称为   ▲    ;装置D中仪器②的名称为  ▲  

(2)用稀硫酸和锌粒制氢气的发生装置可选用上述  ▲   ▲   (填序号)装置;收集氢气可用 ▲   ▲  (填序号)装置。

(3)除去粗盐中不溶性杂质的实验步骤是 ▲  、过滤和蒸发结晶,用到的蒸发装置是 ▲  。(填序号),还必须用下列玻璃仪器组合中的  ▲ (填序号)才能完成实验。

①漏斗、烧杯、玻璃棒    ②滴管、量筒、试管    ③集气瓶、表面皿、广口瓶

(4)用氯化钠固体和水配制5%的氯化钠溶液,需要用到上图装置中的  ▲   (填序号)。

若配制过程中,在已经有少量水的烧杯中加入5g氯化钠和95mL水,其他操作均规范,则所得溶液中氯化钠的质量分数  ▲ (填“>”或“<”,或“=”)5%。

题型:单项选择题

要从shell命令行中执行一条命令,你必须首先键入()。

A.参数变量

B.命令名

C.选项

D.终端号

题型:单项选择题

给水泵发生()情况时应进行紧急故障停泵。

A.给水泵油滤网堵塞1/3

B.给水泵再循环开启

C.给水泵某轴承振动达0.06mm

D.给水泵电机着火

题型:单项选择题

百日咳为()

A.咳嗽声音低微或无声者

B.咳嗽声音嘶哑者

C.金属音调咳嗽者

D.阵发性连续剧咳伴有高调吸气回声(鸡鸣样咳嗽)者

E.咳嗽、粉红色泡沫痰高度呼吸困难者

更多题库