第6题: [单项选择]The abuse of water resources has seriously __________ the existence of human beings. A. jeopardized B. intimidated C. assaulted D. ventilated 参考答案:A 答案解析:对水资源的滥用已经到危及到了人类的生存。jeopardize“使……受到伤害,危及”;intimidate“恐吓,威胁”;assault“(武力或口头上)攻击,袭击”;ventilate“使通风;将…