The external flotation bladder on an immersion suit should be inflated（）.

A . It is inflated by a small CO bottle that is automatically tripped when the front zipper is at the top of the zipper track B . It is inflated by a small CO bottle that is manually tripped C . It is inflated by blowing through an inflation tube D . It inflates by sea water bleeding into the flotation bladder and reacting with a chemical therei

A .  Configure a root zone on the external DNS server. B .  Configure a stub zone for.com on the external dns server. C .  Configure the external DNS server to use the default root hints. D .  Configure the External DNS server to use the ISP’S DNS server as a forwarder.

A . center of gravity B . metacenter C . center of flotation D . keel

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

A . center of gravity B . amidships station C . center of flotation D . geometric center of the waterplane area

A . the center of volume of the immersed portion of the vessel B . the center of gravity of the water plane C . that point at which all the vertical downward forces of weight are considered to be concentrated D . that point at which all the vertical upward forces of buoyancy are considered to be concentrated

A . heel until the angle of loll is reached B . list until the center of buoyancy is aligned vertically with the center of gravity C . trim to the side opposite TCG until all moments are equal D . decrease draft at the center of flotatio

A . change, depending on the location of the LCG B . increase C . decrease D . remain constant

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

A . shape of the vessel's underwater hull remains the same B . vessel's center of gravity shifts to the center of the vessel's underwater hull C . vessel's center of buoyancy shifts to the center of the vessel's underwater hull D . vessel's mean draft increase

A . From the Display properties, extend the display.  B . From the Display properties, modify the resolution settings. C . Restart the computer in VGA Mode. Run dxdiag.exe.  D . Restart the computer in VGA Mode. Install the most up-to-date driver for the video graphics adapter.

A . metacenter B . amidships C . center of flotation D . geometric center of the displaced volume

A．restricts production． B．levies a tax for the difference between private costs and social costs． C．prohibits production． D．All three abov E．Both A and B．

A．toofewhogswillberaiseD B．thepricewillbelessthanthemarginalsocialcost． C．thepricewillbelessthanthemarginalsocialbenefit． D．thepricewillbelessthanthemarginalcosttohogfarmers．

是 否