若几个质数的乘机为770,则这几个质数的和为()
Thosewho’dliketovisittheexhibition________(sign)yournameshere.
Heaskedmewhethermybrother________(fly)toBeijing.
“Haveyoumovedintothenewflat?”“Notyet.Therooms________(paint).”
如图3,正方体的棱长为2,F是棱的中点,则AF的长为()
Agreatnumberofsmallpowerstations________(setup)intheircounty sinceliberation.