题目内容:
Accordingtothetext,itisofvitalimportancetodetecttsunamisdirectlybecause
A.earthquakemonitoringcannotcorrectlydetecttsunamis. B.powerfulunderwaterorganismsalsocausehumancasualties.
C.othergeologicalactivitiesalsocausetsunamis.
D.therearelandslidescausedbytsunamis.
参考答案:
答案解析: