The way that the osmotic pump pill works is based on a process called______.

A．synthesis

B．pressure

C．cellulose

D．osmosis

[问答题]Television works in much the same way as radio. .

[单选题]TheFDAallowedmanufacturersofomega-3pillsandfishoilstoadvertiseomega-3’sbenefitsonconditionthat.A.theirsuggesteddoseisprintedonthelabel.B.theirsuggesteddoseiswithinthesafetylimit.C.thefat’spotentialsideeffectsarementionedD．theproductscontainsideeffect

[填空题] 英译中（Translate）：osmotic potential（）

[单选题]Fuel pump index is （）.A . the viscosity indexB . the fuel oil contentsC . the starting speedD . the reading at the rack

[单选题]If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause maybe （）.A . high steam pressure in the boilerB . abnormally high feed water temperatureC . abnormally high boiler water temperatureD . steam demand exc

[单选题]There is an injection pump for each cylinder, which is usually operated once every cycle by （） on the camshaft.A . a gearB . a camC . a rodD . a miler

[单选题]The pump has a constant stroke and the amount of fuel delivered is regulated by rotating （） which has a specially arranged helical groove cut into it.A . the pump cylinderB . the pump camC . the pump plungerD . the pump miler

[单选题]The fuel injector pump is operated by （） which drives the plunger up and down.A . a separate motorB . a camC . a generatorD . a chai

[单选题]Engine fuel pump index is （）.A . the viscosity indexB . the fuel oil contentsC . the starting speedD . the reading at the rack

[单选题]Sealing in pump shaft is achieved by means of the ( ).A．gasketB．packingC．o-ring