风险识别方法都存在一定的局限性，为什么
题型：问答题
问题：
风险识别方法都存在一定的局限性，为什么
题型：问答题
根据短文内容,用方框中所给的单词的适当形式填空,每词限用一次。
The elephant is one of Thailand’s ___小题1:____.They are smart animals. People say that “Elephants never _小题2:____”.They can walk for a long way and never get lost. But elephants are __小题3:____ great danger. They are _小题4:_____their homes now. How can they live without trees? __小题5:____we must save the trees and not buy things made of ivory.