时-面-雨深曲线上，同一历时，面积越大，则雨深越（） ["大；","小；","相等；","不能确定"]
下列哪项不是霍乱弧菌的特性：（） ["革兰染色阴性","能产生毒力强的外毒素","在暗视野显微镜下呈穿梭状或流星状运动","抵抗力弱，在体外能产生自溶酶而易于自溶","在碱性培养基上生长良好"]
流域径流消退过程中，退水速度最慢的是（） ["地表径流","壤中径流","地下径流","三者相同"]
For which type of connection should a straight-through cable be used?（） [" switch to switch"," switch to hub"," switch to router"," hub to hub"," router to PC"]
《清明上河图》反映了（）。 ["汴河两岸的自然风光","东京城市的繁华景象","清明时节的民间风俗","运河汴河的漕运繁忙"]
共同受托人
