IPv6 is currently in growing deployment around the world,() Internet address registries (RIRs) began to urge all resource managers to plan rapid adoption and conversion.
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1、Current flowing in only one direction
Current flowing in only one direction is called （）Aalternating currentBomnidirectional currentCdirect currentDsinusoidal current
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Set of current is（）.Avelocit in knotBirection from which it flowsCestimated currentDdirection toward which it flow
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3、The Benguela Current flows in a（）.
The Benguela Current flows in a（）.ASW'ly direction along the NW coast of AfricaBS'ly direction off the East Coast of AustraliaCNW'ly direction along the SW coast of AfricaDSW'ly direction along the SE coast of Greenland
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Set of current is（）.Aits velocity in knotsBdirection from which it flowsCestimated currentDdirection toward which it flow
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5、There is a growing realization that th
There is a growing realization that the only effective way to achieve further reductions in vehicle（）is to replace conventional diesel fuel and gasoline with cleaner-burning fuels.ApermissionBemissionComissionDMissio
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6、The population of the world is growing
The population of the world is growing at a dangerous（）AmeasureBrateCincreaseDprogre