下载APP
【单选题】
GPS卫星的轨道高度为__________千米。 (36884:第07章 航海仪器:2728)
A.
1946
B.
1948
C.
1100
D.
20183
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】对于不同尺寸的B-LWD仪器MPR工具，（）工具没有专门的M30短节。
A.
4-3/4in
B.
6-3/4in
C.
8-1/4in
D.
4-3/4in和6-3/4in
【单选题】Part ADirections: Read the following four texts．Answer the questions below each text by choosing A, B, C or D ．Mark your answers on ANSWER SHEET 1.It was the worst tragedy in maritime (航海的) history, s...
A.
It was attacked by Russian torpedoes.
B.
Most of its passengers were frozen to death.
C.
Its victims were mostly women and children.
D.
It caused the largest number of casualties.
【多选题】伽马探伤中辐射剂量（率）监测的仪器的类型包括 。 （ ）
A.
固定式辐射剂量（率）监测仪
B.
气泡中子剂量计
C.
便携式辐射剂量（率）监测仪
D.
个人剂量计
E.
个人剂量（率）报警仪
【多选题】检测工作仪器选用的基本原则有（）。
A.
符合测量检测工作的功能要求
B.
检测仪器、仪表必须高精度
C.
精度等级、量程等技术指标符合测量值的需要
D.
必须经过检定合格，有标识，在检定定周期内
E.
分门别类按要求对测量检测仪器仪表进行保管
【单选题】It was the worst tragedy in maritime (航海的) .history, six times more deadly than the Titanic. When the German cruise ship Wilhelm Gustloff was hit by torpedoes (鱼雷) fired from a Russian submarine in th...
A.
a strong ice storm tilted the ship
B.
the cruise ship sank all of a sudden
C.
the badly damaged ship Leaned toward one side
D.
the frightened passengers fought desperately for lifeboats