噬菌体侵染大肠杆菌

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如图2,若延长BA至E,在∠ABO的内部作射线BF交OM于点C,若∠EAC和∠FCA,∠ABC的平分线相交于点G,过点G,作BE的垂线,垂足为H,判断∠AGH和∠BGC的大小关系?请写出你的结论并说明理由 七下数学同步提优76页15题如图,D是AC上一点,BE //AC,BE=AD,AE分别交BD,DC于点F,G,角1=角2,图中那些三角形于三角形FAD全等,说明理由找出所有的! 打折用英语怎么讲?我记得是一个介词短语,on 什么来着, 特价处理商品英文怎么讲呢 What a shame .啥意思 夜晚的灯光犹如微型太阳一样明亮英语怎么说 你像太阳一样会发光 用英语怎么说 我需要你就想向日葵需要太阳一样 用英语怎么说? there are some boys ----(swim) in the pool写出原因 there are some children swimming in the pool这里的孩子正在游泳池游泳!我觉得正在游泳应该是be swimming,所以句子是there are some children are swimming in the pool但是这样句子里就出现了两个动词is 似乎不对,但 I saw some boys swimming in the pool.的中文翻译 两组数【0,63】【63,63】;运用相同的计算公式;利用任何算法(不要太复杂,可以夹杂其他数)结果在0-63范围之内;结果反算 :已知结果值和63,利用(2,3条规则)算出0和63; 已知X1+X2=8/7 那么X1的平方减去X2的平方等于多少?这道题是椭圆方程题,│x1-x2│√(k^2+1)求弦长,但只知道X1+X2=8/7 那么│x1-x2│该怎么算啊 “日常用品大全,生活小贴士”用英语怎么说? "施工常识"用英语怎么说? One of my foreign friends is looking forward to_my country.A.visit B.visiting C.having visited D.be visiting说详细点 谢谢! The foreign friends got ___ our city ____.A.to;in May 2 ,2003 B.to;on May 2,2003C.in;in May 2,2003D.in;on May 2,2003 222.Distinguished guests and friends,welcome to our school.______ theceremony of the 50th Anniversary this morning are our alumni (校友) from home and abroad.(江苏)A.Attend B.To attend C.Attending D.Having attended请翻译, 导游正带着外国朋友参观我们乐山城呢.Look the guider is _______ the foreign friends ______our Le导游正带着外国朋友参观我们乐山城呢.Look the guider is _______ the foreign friends ______our Leshan city. There is ( ) girl in the room .( ) girl is tall.(用冠词填空) there is a little girl in the room.划线部分提问.划线的是a little girl.2.there is a computer on the desk.划线部分是a computer. there is ____ girl in the room.a.little b.only There is a girl_____in the room.(sing) there is a girl singing in the room 和The girl in room is sining.是不是一样啊,有什么区别?如题. just my luck中,追求女主角的那个男的,用直升机来接她时,放的那段英文歌是不是mcfly的啊,那歌叫什么名字啊? 倒霉爱神 JUST MY LUCK怎么样 Just My Just my imagination 中文翻译 she is very kindful 还是she is very kind? 请问What a shame 他和 what a pity 有什么区别我看有的地方讲的是很遗憾,但今天我们老师讲的是很可耻,很丢人. What a beautiful game it is! 这句话是什么意思!? My pleasure 与 It is a pleasure有什么区别?what a shame?什么意思?