Furthermore, the force of a magnitude-9 earthquake is so great that no amount of preparation can prevent the occurrence of ...

【YB亚博APP官网】zhèng sī wéi gè rén zī liào ： zhèng sī wéi ， nán ， 1997 nián 2 yuè 26 rì chū shēng yú zhè jiāng shěng wēn zhōu shì ...