更多"WA是指：（）。"的相关试题:
[单项选择]Which types of portable extinguisher should you watch for the reflash of the fire?（）
A. foam and water
B. CO2 and dry chemical
C. dry chemical and water
D. foam and CO2
[单项选择]Which statement is TRUE when comparing cold and warm fronts?（）
A. Cold fronts are more violent and of shorter duration
B. Cold fronts are milder and last longer
C. They are very similar with the exception of wind direction
D. Warm fronts are more violent and of longer duration
[单项选择]Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.
A. good getting ground
B. good holding ground
C. good grabbing ground
D. good handling ground
[单项选择]（）are experienced in temperate latitudes during warn summer weather but rarely exceed Force 3 and may extend 10 to 15 miles on either side of the coastline.
A. Trade Winds
B. Winds of the temperate zones
C. Monsoons
D. Land and Sea Breezes
[单项选择]A Doppler speed log indicates speed through the water（）.
A. at all times
B. in the bottom return mode
C. in the volume reverberation mode
D. only when there is no current
[多项选择]WA1208E的优势技术包括（）。
A. 全面支持802.11i安全机制、802.11eQoS机制、802.11f切换机制
B. 多VLAN支持，最多支持16个虚拟SSID的VLAN划分
C. 兼作网桥使用，WDS模式支持PTP、PTMP工作模式
D. 支持基于用户数的负载均衡、基于流量的负载均衡
[单项选择]A seaman is reported missing in the morning and was last seen after coming off the mid-watch. Which type of turn would you use to return to the trackline steamed during the night?（）
A. Williamson
B. Racetrack
C. 180°turn
D. Anderson
[单项选择]"Cast iron has poor corrosion resistance to sea water, especially in the presence of bronzes" Implies（）.
A. east iron is a cheap material
B. cast iron can pollute sea water
C. cast iron has mere corrosive than bronzes to sea water
D. cast iron is more corrosive to sea water when it meets with bronzes
[单项选择]Where a propeller shaft passes through the hull，water is prevented from entering by means of a（）.
A. stuffing box
B. propeller boss
C. seacock
D. stop-water
[单项选择]A diesel engine fails to start due to excessive water in the fuelBefore the engine can be started, the water should be removed from the（）
A. fuel lines
B. lube oil filter
C. crank case pump
D. rocker arm reservoir
[单项选择]She walked slowly away, and he waited until she was out of（）before going back into the house.
A. reach
B. sight
C. touch
D. mind
[单项选择]In the first 24 hours after abandoning a vessel，water should be given only to personnel who are（）.
A. thirsty
B. sick or injured
C. wet
D. awake
[单项选择]Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
A. HF
B. VHF
C. MF
D. MF/HF
[单项选择]In the event of a flame failure in an auxiliary water-tube boiler, you must（）
A. relight the boiler immediately to prevent loss of steam pressure
B. relight the fire off the brickwork as the bricks are cherry red
C. purge the furnace of any combustible gases before attempting to relight the fire
D. speed up the feed pump to prevent dry firing when the burner flame is reestablished
[单项选择]Professor Wang ,（）for his informative lectures, was warmly received by his students．
A. knowing
B. known
C. to be known
D. having known
