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较长时间的定时任务可以使用Alarm来实现。(   )



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 佳题速递:
  • 某班有45个学生,若用二进制对其编码,最少需要二进制码的位数是()。 电工电子技术
  • 在机电一体化产品中,常用的输出设备有()、发光二极管显示器、状态指示灯、微型打印机、阴极射线管显示器和扬声器等。机电一体化系统设计
  • 磁电式传感器通常输出功率较大,测量电路比较简单。 传感器与测试技术
  • 10、Long ago, there was a rich man. He had a very big house with a lot of treasures. He had many servants to look after it for a few days. One day, two silver saucers were stolen from the cupboard. After a few days, another two saucers were stolen again. The rich man was very angry. He thought, "Someone must have stolen them. I must catch the thief, or another two saucers would be stolen in a few days." Then he had an idea. He called in all his servants and said, "Some of my silver saucers have disappeared. Someone among you must have taken them. Who has taken them?" The servants looked at one another and kept quiet. The rich man said," I shall catch the thief myself. I am giving each of you a stick. Look, all the sticks are of the same length. Keep the sticks. Bring them back tomorrow. The thief's stick will grow two centimeters longer." That evening, Salleh, one of the servants, went home sadly. His wife asked him, "Why are you so sad this evening?" "This stick will grow two centimeters longer tomorrow because I have taken the silver saucers," he said. "Oh, don't worry. Cut off two centimeters from the stick," his wife said. "In other words, your stick will be of the same length as any of the other sticks." When Salleh heard this, he was very happy. At once, he cut off two centimeters from the stick with a knife. The next day, each of the servants brought back his stick. The rich man then measured each of the sticks. He found Salleh's stick shorter by two centimeters, Salleh was the thief. He was caught and put into prison. The rich man got back the stolen saucers.统考英语阅读理解
  • 一日常规活动包括:晨间及离园活动、生活活动、教育活动、户外活动及自由活动、游戏及区域活动。 对 错幼儿园班级管理
  • 怎么给word文档加密?计算机应用基础