It is inflated by a small CO2 bottle that is automatically tripped when the front zipper is at the top of the zipper track
It is inflated by a small CO2 bottle that is manually tripped
It is inflated by blowing through an inflation tube
It inflates by sea water bleeding into the flotation bladder and reacting with a chemical therein
第1题：
The external flotation bladder of an immersion suit should be inflated ______.
A.only after two hours in the water
B.only after four hours in the water
C.before entry into the water
D.upon entry into the water
第2题：
An immersion suit should be equipped with a/an ______.
A.air bottle for breathing
B.whistle and hand held flare
C.whistle，strobe light and reflective tape
D.whistle，hand held flare and sea dye marker
第3题：
Customer, This suit looks nice. _________?
Assistant: Yes, of course. The fitting room is over there.
A． How much is it
B． Can I Try it
C． How can I buy it
D． Can I Try it on
第4题：
A user works daily with video production and needs portable storage which will allow them to transport their work back and forth from home. Taking the users storage and bandwidth requirements into consideration, which of the following would BEST suit the users needs?（）
第5题：
Which is TRUE concerning immersion suits and their use ________．
A.Only a light layer of clothing may be worn underneath
B.They provide sufficient flotation to do away with the necessity of wearing a life jacket
C.They should be tight fitting
D.A puncture in the suit will not appreciably reduce its value
第6题：
An immersion suit must be equipped with a(n) ______.
A.air bottle for breathing
B.orange smoke canister
C.whistle，light and retroreflective material
D.sea dye marker
第7题：
You are testing the external inflation bladder on an immersion suit and find it has a very slow leak．Which action should be taken ________．
A.Replace the suit
B.Replace the inflation bladder
C.Take it out of service and repair in accordance with the manufacturers instructions
D.Some leakage should be expected and a topping off tube is provided; no other action is necessary
第8题：
The external flotation bladder on an immersion suit should be inflated ______.
A.before you enter the water
B.after you enter the water
C.after one hour in the water
D.after you notice that your suit is losing buoyancy
第9题：
For a floating vessel, the center of flotation is the point in the waterplane ______.
A.about which the vessel lists and trims
B.which coincides with the center of buoyancy
C.which, in the absence of external forces, is always vertically aligned with the center of gravity
D.which is shown in the hydrostatic tables as VCB
第10题：
虚拟现实的基本特性可以用3个"I"来描述：Immersion，Interaction，Imagination。