更多"Having a good command of English is"的相关试题:
[单项选择]After having activated the emergency position indicating radio beacon，you should（）.
A. turn it off for 5 minutes every half-hour
B. turn it off and on at 5 minute intervals
C. turn it off during daylight hours
D. leave it on continuously
[单项选择]A ship having continuous closely spaced transverse strength members is（）.
A. longitudinally framed
B. transversely framed
C. cellular framed
D. web framed
[单项选择]A vessel having continuous closely spaced transverse strength members is（）.
A. longitudinally framed
B. transversely framed
C. cellular framed
D. web framed
[单项选择]A light having characteristics which include color variations is defined as（）.
A. switching
B. alternating
C. oscillating
D. fluctuating
[单项选择]Good evening, Professor Hardy. Good evening, John. Come in, please. Thank you, I hope I am not interrupting you. No,（）
A. thank you
B. not at all
C. thanks
D. let it alone
[单项选择]What about having a drink?（）
A. Good idea
B. Help yourself
C. Go ahead, please
D. Me, too
[单项选择]Having studied the INMARSAT document, GMDSS document, SOLAS Convention and other international navigation documents, we all know that the Chapter IV of SOLAS Convention is mainly about（）.
A. the radio regulations
B. the technical terms and definitions
C. how to operate the GMDSS SES equipment
D. Maritime Communications
[单项选择]On engines having oil cooled pistons the lubricating oil pre-heater must be put into operation and the rate of heating so （） that the temperature of the piston cooling oil returns are 32℃ to 35℃ over a period of at least two hours.
A. slow
B. quick
C. arranged
D. high
[单项选择]Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?（）
A. Stationary
B. Full floating
C. Semi-floating
D. Free rolling
[单项选择]Vessels having main engines arranged for air starting are to be provided with at least （）
A. one automatic drain serving both containers
B. two air starting containers of approximately equal size
C. one control air container and one starting air container
D. one additional means of starting the main engine
[单项选择]Said cargo spaces having been cleaned in accordance with the Regulations and the recommendations of the (US) National Cargo Bureau，Inc. This wording is likely to appear in （）.
A. CERTIFICATE OF CLEANLINESS
B. FUMIGATION AND GAS FREE CERTIFICATE
C. CERTIFICATE OF CLASS
D. INTERNATIONAL OIL POLLUTION PREVENTION CERTIFICATE
[单项选择]thing itself指的是（）。
A. 他物体
B. 物他体
C. 物自体
D. 自物体
[单项选择]The most important thing to remember when launching an inflatable liferaft by hand is to（）.
A. open the CO2 inflation valve
B. open the raft container
C. ensure that the operating cord is secured to the vessel
D. inflate the raft on the vessel，then lower it over the side
[单项选择]Lines drawn through points on the earth having the same atmospheric pressure are known as（）.
A. isothermal
B. millibars
C. isobars
D. seismics
[单项选择]A buoy having red and green horizontal bands would have a light characteristic of（）.
A. group occulting
B. composite group flashing
C. Morse letter A
D. quick flashing
[单项选择]Pitted reduction gear teeth having a deep blue color with evidence of overheating have been operated with （）
A. excessive speed
B. improper warm-up
C. extreme misalignment
D. inadequate lubrication
