金属物品用英语表示为（）A、metal objectB、metal thingC、metal goodsD、metal item
金属物品用英语表示为（）
- A、metal object
- B、metal thing
- C、metal goods
- D、metal item
相关考题：
We drop a piece of metal into a jar full of water, the metal will float if it weighs less than______.A. an equal amount of silverB. an equal amount of goldC. all the water in the jar nowD. the water that leaves the jar
In the 9th century during the Song Dynasty, people used ______to substitute metal coins for the convenience of their credited consumers. A、the paper currencyB、shellsC、bartered goodsD、weapons
Any piece of metal on becoming magnetized will develop regions of concentrated magnetism called ______．A.fluxB.polesC.magnetsD.azimuth
What’s corrosion？ It’s a chemical______in which metal is transformed into salt and oxides.A.reactB.actionC.reactionD.response
（）are the three different coatings which can protect metal from corrosion.A、Cement wash, bitumen and paintB、Metal primers, undercoats and topcoatsC、Varnishes, heat-resistant paints and anti-fouling paintsD、Cement wash, primer and undercoat
Primer coats are applied to a bare metal surface to （）protection against rust.A、letB、giveC、preventD、take
A bare metal backup requires which of the following backup method ologies？（）A、 FullB、 DifferentialC、 IncrementalD、 Database
A bare metal backup requires which of the following backup methodologies?（）A、FullB、DifferentialC、IncrementalD、Database
It is prohibited to carry any（）on the planeA、contrabandB、forbidden articleC、dangerous articleD、metal items
单选题The purpose of the ashing step in graphite-furnace atomic-absorption spec-troscopy is to（）AVaporize metal atoms to be analyzedBCause the metal species to form carbides which are more volatileCConvert the graphite furnace to ash to avoid carbide formationDBurn off organic species that would interfere with the elemental analysis
单选题In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should（）Abuild up the piston crown by metal sprayingBbuild up the cylinder head by metal sprayingCinsert shims between the crankpin bearing box and the connecting rod footDinstall a thinner head gasket
单选题What is a step in attaching a poured metal socket to a wire rope?（）AEtch the wire with acidBInstall a wire seizing on the wire that will be inside the socketCEnsure the fiber core is well lubricatedDPour molten babbitt metal into the socket
单选题In many installations basket strainers consist of a cylindrical container in which a perforated metal or wire basket is suspendedThe bold and italic word “which” means （）.AinstallationsBbasket strainersCa cylindrical containerDa metal or wire basket
单选题The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?（）Amain bearing shellsBmain bearingCsteelDbearing metal
单选题For a propeller direct driven by the engine,（）.Athe thrust pads are while metal faced on both sidesBthe thrust pads are while metal faced only on the forward sideCthe thrust pads are while metal faced only on the after sideDintermediate shaft usually supported by a plummer block
单选题The cross-head shoes are white metal lined, grooves being cut horizontally on the face of the white metal to ensure （）.Aan adequate supply of lube oilBan adequate supply of fuel oilCan adequate supply of turbine oilDan adequate supply of cylinder oil