( )A bridge_____last years.A.has been built B.is being built C.was built
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( )A bridge_____last years.A.has been built B.is being built C.was built
( )A bridge_____last years.A.has been built B.is being built C.was built
( )A bridge_____last years.A.has been built B.is being built C.was built
C last year是过去时间 用过去时
( )A bridge_____last years.A.has been built B.is being built C.was built
(A+A)+(A-A)+(A×A)+(A÷A)=81 ,A是多少?
A-A=0 A+A=?A÷A=1 A×A=?(A+A)+(A-A)+(AxA+A÷A)=100 A=?
a+a+a+a+a=( )x(
(通分) a/a^a^a+3a+2 ,a/a^a+2a+1 ,-1/3a+6
(-a)³×(-a²)-a²×(-a)²×(-a)(计算)(-a)³×(-a²)-a²×(-a)²×(-a)
编程输入与以下图形(pascal repeat语句)a a a a a a a a a a a a a aa a a a a a aa a a a a a aa a a a a a a那个第一行打错了 跟后面是一样的规律,组成平行四边形
5a-【a+(5a-2a)-2(a-3a)-4a】
2a²与()相同.A.a+a B.a×2 C.a×a
关于a的英语单词a( ) ,a( ),( )a( ),( )a( ),( )a( ),( )a( ),( ) ( ) a( ),( ) ( ) a( ),括号里填字母!
a3表示()A 3a B a*a*a C a+a+a D a*3
a×a×a简写为( ).
选择 a3表示( ) A.a×3 B.a×a×a C.3a选择 a3表示( )A.a×3 B.a×a×a C.3a
(A)
(a)
[(a-1)/a]除以(a-1/a)
化简a(a+2)-(a-1)(a+1)
A×B+A×C-A=A×( )