【单选题】The function is continuous in rectangle is the ___________ for the existence of the solution of the I.V.P. .
B.
Neither sufficient nor necessary condition
D.
sufficient and necessary condition
【简答题】从结构上看,时钟同步 RS 触发器是在基本 RS 触发器的基础上增加了______构成的
【简答题】连续概率分布(continuous probability distribution)