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如图所示,A.B两点被池塘隔开,在AB外任选一点C,连结AC.BC,分别取,,量得MN=38m,则AB的长是 ( )
A.152m B.114m C.76m D.104m
如图,A、B两点被池塘隔开,在AB外任选一点C,连结AC、BC分别取其三等分点M、N量得 MN=38m.则AB的长是( )
A.152m B.114m
C.76m D.104m