Bysaying"theworldhasbeensparedat.ruewaterwar"(Line1,Para.4),theauthormeans()
[A]thewatersupplyintheworldismorethanneeded
[B]theworldhassavedenoughwatertoavoidthewar
[C]theworldhasneversufferedawartr iggeredbywater
[D]theworldsparesnoefforttoavoidawarcausedbywater
正确答案:C


