下列指标属于相对比的是() ["极差R","中位数M","变异系数CV","标准差S","生存率"]
1948年6月7日,开封河南大学南迁(),分住怡园、狮子林后院、沧浪亭等处。 ["杭州","宁波","常州","苏州"]
浸火柴杆于本品水浸液中,使之着色,干后再浸入盐酸中立即取出,于火焰附近燃,杆上发生深红色反应的药材是() ["海金沙","儿茶","五倍子","冰片","芦荟"]
执行下列逻辑或运算:01010101∨10010010其运算结果是() ["00010000","11010111","11100111","11000111"]
茯苓原植物属于() ["多孔菌科","松萝科","麦角菌科","银耳科","马尾藻科"]
一师范的前身,是南宋著名理学家张栻创办的什么书院?