4.After____seemed a friendly exchange of greetings,the foreign ministers of the two countries sat down to talk business.a.what b.which .c.that d.it(越详细越好,说一下添完之后做什么成分) 5．Professor Yuan is reported ____ another brea

4.After____seemed a friendly exchange of greetings,the foreign ministers of the two countries sat down to talk business.a.what b.which .c.that d.it(越详细越好,说一下添完之后做什么成分) 5．Professor Yuan is reported ____ another brea 求助一道英语试题After____seemed a very long time,the badly injured man came back to life.A.that B.it C.what D.which After____seemed to be a useless effort ,the explorer should find the secret path to the cave.A.whichB.whereC.thatD.what分析一下句子吧,还有问什么选D? 单选,并说出是什么从句!2.These wild flowers are so special that i would do___i can to save them.A.whatever B.that C.which D.whichever3.After____seemed like two hours to us,we arrived there at last.A.it B.what C.that D.there4.One of the men h 单选,并说出什么从句@急!2.These wild flowers are so special that i would do___i can to save them.A.whatever B.that C.which D.whichever3.After____seemed like two hours to us,we arrived there at last.A.it B.what C.that D.ther 单选.并说出什么从句!2.These wild flowers are so special that i would do___i can to save them.A.whatever B.that C.which D.whichever3.After____seemed like two hours to us,we arrived there at last.A.it B.what C.that D.there4.One of the men held 1/a+1-a+2/a²-1·a²-2a+1/a²+4a+4. 请你填出题中a所表示的数,使等式成立.1.a-a=a×a a=（ ）2.a×a=a÷a a=( ）3.a+a=a÷a a=( )4.a+a=a×a a=( ) 请填出题中A表示的数,使等式成立1.A-A=A*A A=( ) 2.A*A=A/A A=( ) 3.A+A=A/A A=( )4.A+A=A*A A=( )1/2表示啥意思.2不对吧 请填出题中a所表示的数,使等式成立1.a－a＝a×a a＝( ) 2.a×a＝a÷a a＝( ) 3.a+a＝a÷a a＝（ ) 4.a＋a＝a×a a＝( ) (a+b)(a+b)=7.(a-b)(a-b)=4.求a*a+b*b,ab的值 1.已知a是有理数,则|a-2001|+|a-2002|的最小值是多少?2.设x,y,a都是整数,|x|=1-a,|y|=2+2a-a×a,则a=?3.已知a＝1999,则|3×（a×a×a）－3×(a×a)+4a+1|-|3×(a×a×a)-3×(a×a)+3a-2001|=?4.有理数a,b,c均不为0,且a＋b＋c=0,设 1.已知a是有理数,则|a-2001|+|a-2002|的最小值是多少?2.设x,y,a都是整数,|x|=1-a,|y|=2+2a-a×a,则a=?3.已知a＝1999,则|3×（a×a×a）－3×(a×a)+4a+1|-|3×(a×a×a)-3×(a×a)+3a-2001|=?4.有理数a,b,c均不为0,且a＋b＋c=0,设 四道公式,求高人1.(a+b)(a+b) 2.(a-b)(a-b) 3.(a-b)(a+b) 4.(a+b)(a-b) 例（ ）g( ) egg 下面开始1.a ( ) 2.( ) a ( ) 3.( ) ( ) a ( ) 4.( ) ( ) ( ) a ( ) 5.( ) ( ) ( ) ( ) a ( ) 6.( ) ( ) ( ) ( ) ( ) a ( ) 7.( ) ( ) ( ) ( ) ( ) ( )a ( ) 8.( ) ( ) ( ) ( ) ( ) ( ) ( ) a ( ) 这是一部分` `下一个 1.( ) ( ) ( ) ( 若（3x-1)=a^0+a^1x^1+a^2x^2+……+a^5x^5 1.a^0+a^1+a^2+a^3+a^4+a^5=?2.a^0-a^1+a^2-a^3+a^4-a^5=?3.a^0+a^2+a^4=?4.a^1+a^3+a^5=?5.a^0=? 几道线形代数题,求教1.| x y x+y| 3.| x a a a a || y x+y x | | a x a a a ||x+y x y | | a a x a a |2.|1 0 a 1 | | a a a x a ||0 -1 b -1 | | a a a a x ||-1 -1 c -1 | 5.| 0 .n||-1 1 d 0 | | 1 0 .|4.| a 1 ...1 1 | | 2 .|| 1 a ...1 1 | | ..|| ::::| 判断1.√16^4=4a^2 2.√5a*√10a=5√2*a 3.a√1/a=√a^2.1/a=√a 4.√3a-√2a=√a3.a√1/a=√a^2再乘1／a(同一根号）=√a