B24.B根据“To have the oncelifetime-in-a- chance to see rare Black Sea dolphins(海豚), people in the landlocked Russian town of Kaluga don't have to leave their city", "people who might never see the ocean”可推断答案。25. Azovtseva的摇头,是对“their animals live longer than wild animals, and the animals under their care are with them for life.hey 're'amily的否定,结合她在下段所说的话可确定答案。26.A根据“as form of required identification和下段内容可确定答案27.C本文第1、2段引出短文主题,其余各段均为披露海洋水族馆黑暗的真相。