患儿男， 6 个月，人工喂养，腹泻2 天，做粪便培养，有可疑致病菌生长时，要在最短时间内初步判断菌种，首选的方法是
A、不染色暗视野下观察活菌形态B
暂无解析
我国稀土矿储量居世界首位，主要矿区在()
()Whatabout__________?
下列说法符合物理学史实的有（）
在Ⅱ栏中选出与Ⅰ栏中相应的答语。
ⅠⅡ
()1.What'syourtelephonenumber,please?A.Heisaworker.
()2.It'sverycoldtoday,isn'tit?B.Itdoesn'tmatter.
()3.Canyoumendit?C.Yes,wonderful,thanks.
()4.Howisyourmother?D.Sometimes.
()5.Hi,thisismyfriend,Lily.E.Mytelephonenumberis6262383.
()6.I'msorrytotroubleyou.F.Yes,itis.Youneedtowearwarmclothes.
()7.Howoftendoyougotothepark?G.Certainly.
()8.Excuseme.Whereisthepostoffice?H.Nicetomeetyou.
()9.Whatdoesyourfatherdo?I.SheisOK.
()10.Didyouhaveagoodtrip?J.It'sabouttwentymetersfromhere.
you，me，please，could，help
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