外照射是射线照射人体后只造成对人体组织的损伤。例如γ射线照射造成体内深部损伤，β射线伤害皮肤及眼睛的晶状体
1、正确正确
暂无解析
()Thereare_____onthetable.
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，let，help，me
____________________________
Wecanseesomebirdsoverthere.(对画线部分提问)
_________________________________________
最新《自然》载文：科研人员从一种溶杆菌属的细菌中提取一种新型抗生素(LysocinE)，它能对抗常见抗生素无法对付的超级细菌——耐甲氧西林金黄色葡萄球菌，下列相关叙述正确的是
