[名词解释] 大陆坡

风积现象 生活史各阶段均营寄生生活的寄生虫属于 ["A．兼性寄生虫","B．专性寄生虫","C．偶然寄生虫","D．体外寄生虫","E．体内寄生虫"] 下列不属于虫媒病的是 ["A．丝虫病","B．疟疾","C．疥疮","D．登革热","E．鼠疫"] 大陆架 舄湖 大陆坡