A:_______________. B:Australia is very clean andA:_______________.B:Australia is very clean and beautiful.
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A:_______________.B:AustraliaisverycleanandA:_______________.B:Australiaisverycleanandbeautiful.A:__
A:_______________. B:Australia is very clean andA:_______________.B:Australia is very clean and beautiful.
A:_______________. B:Australia is very clean and
A:_______________.
B:Australia is very clean and beautiful.
A:_______________. B:Australia is very clean andA:_______________.B:Australia is very clean and beautiful.
what do you think of Australia?
若a/b,则a-b/b=__.若a-b/b=2/3,则a+b/b=__
( a^4-2a²b²+b^4)÷(a+b)²÷(a-b)=___
A:___________?B:It's a fine day today.
如果a-b=c,那么a=__; 如果a+b=c,那么a=__;如果a+(-b)=c,那么a=__;如果a-(-b)=c,那么a=__.
写出图中A、B、C各点的地理坐标A:_ _; B:_ _; C:_ _
若a>0,b>0,则(a+b)(1/a+1/b)的最小值为_.
设a>b>0,a^2+b^2=6ab,则(a+b)/(a-b)的值等于_
已知1/a-1/b=2,则(2a-ab-2b)/(a-3ab-b)的值为______
已知a/b=1/3,则(a^2-2ab-b^2)/(a^2-3ab+b^2)=______
1.______you like banana? A.does B.are C.do
已知线段a=6cm,b=2cm,则a,b,a+b的第四比例项是___cm,a+b与a-b的比例中项是___cm.
已知a,b是实数那么“a²>b²”是“a>b”的_____条件
规定a_b=a+b,求3_(-5)的值.
a+b=8,ab=4,a=_,b=_.
It’s__weather__a walk A./ in B.a for C.a of D./ for
a-b的相反数是_ a+b的相反数是_ a的相反数是_
it_a short tail a.has b.have
I can play _ chess.A./ B.the C.a