题目内容:
WhatisthepurposeofsettinguptsunamimonitoringnetworksinthePacific?
A.Togainknowledgeofseabedpressurechangeandactivities. B.Tohelpdecidewhetherpeopleshouldmovetoasaferplace.
C.Tohelpdecidewhentostrengthentheirhouses.
D.TogetthePacificcountriesinvolvedintsunamiforecast.
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答案解析: