A:under
B:outside
C:over
D:beyond
at for in with to
如图,弧AD是以等边三角形ABC一边AB为半径的四分之一圆周,P为弧AD上任意一点,若AC=5,则四边形ACBP周长的最大值是( )
What are they ? They are pandas. They`re .
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