Theteamplayedhardbecausethechampionshipofthestatewas______.

• A.athand
• B.atstake
• C.atlarge
• D.atbest

设圆C与圆(x-5)2+y2=2，关于y=2x时称，则圆C方程为()

• A.(x-3)2+(y-4)2=2
• B.(x+4)2+(y-3)2=2
• C.(x-3)2+(y+4)2=2
• D.(x+3)2+(y+4)2=2
• E.(x+3)2+(y-4)2=2

没实数a,b満足ab=6，|a+b|+|a-b|=6，则a2+b2=()

• A.10
• B.11
• C.12
• D.13
• E.14

Idon’tthinkyou'llchangehismind；oncehe’sdecidedonsosomethinghetendsto_____it.

• A.stickto
• B.abideby
• C.complywith
• D.keepon

Tomplacedthebanknotes，_________thechangeandreceipts，backinthedrawer．

• A.morethan
• B.butfor
• C.thanksto
• D.alongwith

将一批树苗种在应该正方形花园边上，四角都种，如果每隔3米种一棵，那么剩下10课树苗,如果每隔2米种一棵那么种满正方形的3条边,则这批树苗有()棵

• A.54
• B.60
• C.70
• D.82
• E.94