()1.Don'tbelateagain.A.Anewwatch.
()2.MayIhaveacupoftea?B.Me,too.
()3.Iliketheredfan.C.Isee.
()4.What'sthatonthedesk?D.Sure.
()5.Where'sDad?E.Perhapshe'sinthestudy.
()6.Shallwegotothezoobybike?F.It'sBob's,Ithink..
()7.Whosekiteisthis?G.Goodidea.
()8.CanIhavealookatyourdress?H.Yes.Hereyouare.
如图射线管,K是阴极,A是阳极(又称对阴极),管内被抽成真空,当射线管的阴、阳两极接在几万伏的高压电源上,会产生M、N两种射线,下列说法正确的是
有①氨水②NH4Cl溶液③Na2CO3溶液④NaHCO3溶液各25mL,物质的量浓度均为0.1mo1/L,下列说正确的是
—Where_____you_____?
—I'mfromBeijing
()What'sthisinEnglish?_____ajeep.