【多选题】在中国法律思想史上,主张“无为而治”的思想家有()
【简答题】如果关系R2的外部关系键X与关系R1的主关系键相符,则外部关系键X的每个值必须在关系R1中主关系键的值中找到,或者为空,这是关系的 规则。
【简答题】语言知识: The ability to communicate is the primary factor that distinguistshes human beings from animals. And it is the ability to communicate well which distinguishes one individual from another. (1)___...
【简答题】组合开关的主要用途是什么?它的常见故障有哪些?
【判断题】组合式刀开关的用途主要是引入电源或控制小容量电动机的启动,只能单向转动。
【简答题】The ability to use English includes both the ability to _______ others and the ability to express oneself.