【简答题】有一组周期性的任务( 3个),表4.3给出了它们的时限要求表,请给出关于这组任务的调度顺序图。 表 4.3 习题18进程时限要求表 进程 到达时间 执行时间 完成最后期限 A(1) 0 10 20 A (2) 20 10 40 ... ... ... ... B (1) 0 10 50 B (2) 50 10 100 ... ... ... ... C(1) 0 15 50 C(2) 50 15 ...
【简答题】完形填空. Dear grandma, How's it going? I hope that grandpa is well now. l am sorry to hear that he had a 1 last week. l hope you are in 2 health. Things are fine here. I finished my end-of-year 3 last we...
【单选题】生产经营费用扣除生产费用后余下的部分叫()
【单选题】关于蓝莓营养特点说法错误的是
A.
蓝莓对主要营养元素(氮、磷、钾、钙和镁等)的需求量比其他果树要少
D.
蓝莓植株体内的 PH 值也与营养状况密切相关