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共找到 1634 与2/an=1/a 相关的结果，耗时300 ms

设集合A={x|2x^2+3px+2=0},B={x|2x^2+x+q=0},其中p,q,（属于）R,当An（n是数学符号）B={1/2}时.1：分别求p与q的值.2：求Au（数学符号,与n相反）B.务必准确呀～数学

根据首字母及英文提示拼写单词(请帮我解释下英文提示的意思,1,s_come to an end 2,c_be in a fashion3,y___even or still 英语

就句子中的括号部分提问.1.Her name is (kate).2.My favorite food is (bananas).3.I have an English lesson (in the morning).4.Beckham is (thirty - ye 英语

r - old ).5.Th

根据给出的第一个字母填空：1.ujohn is my father"s brother.2.we call father and mother p.3.hongkong is an s___of china.4.the box is t 英语

o s______.i wa

保证句意,用词的适当形式填空,并翻译1.she likes drawing picture.she is an _(art)2.lucy works in a bank. she is an (account)3.tom is am _ 英语

_.he can desig

填a,an,the,/ 1._ doctor told him to take medicine three times day.2. Blacks are living at the end of ___ Sunshine 英语

Street.3.After

1.Lian Zhan with his visitors _ from Taiwan _ his first visit to the mainland of China in 2007 A who was,paid B who come,pay C whi 英语

h come,pay D t

组成句子1,an,adventure,what,amazing,2,some,on,in,places,can,people,walk,fire3,you,do,want,cinema,go,the,to,to,4,there,every,Spain,is,in,ye 英语

r,a,food,fight

连词成句1.actor,Tom,wants,an,be,to,(.)2.teacher,I,my,like,taking,to,(.)3.family,is,here,of,a,my,photo,(.)4.doing,what,you,are,you,are,)5.t 英语

ere,is.weather

(1)Ken likes to play _bridge with his friends.A.a B.an C.the D./(2)When Lily was primary school,she was a member of the En 英语

lish club.A.on

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