1.  >>  国家开放大学 / Android智能手机编程
 国家开放大学 / Android智能手机编程

Android系统采用分层架构,由高到低分为4层,依次是应用程序层、应用程序框架层、核心类库和Linux内核

 参考答案:
 佳题速递:
  • 2[单选题] 王蒙对新时期文学的贡献,是较早借鉴了西方现代派小说表现手法,创作了一批( ) A.改革小说 B.寻根小说 C.诗化小说 D.意识流小说现代文学
  • 作为条件表达式时,下列选项等价于布尔值False的是( )。{}0[]""大数据技术
  • 16[论述题] 试举例说明非对称性搜索的实验证据及其理论意义认知心理学
  • 4[单选题] 用人单位违反劳动合同法的规定解除或者终止劳动合同,依照劳动合同法第八十七条的规定支付了赔偿金的,不再支付经济补偿。赔偿金的计算年限自( )起计算 A. 一个月 B.三个月 C.半年 D.用工之日消费心理学
  • 题型描述: 阅读理解The fourth Thursday in November is called Thanksgiving Day. In the United States, it is an annual (每年的) occasion to show thanks to God for his goodness.As a historical, national and religious holiday, Thanksgiving Day began with the English in Plymouth Colony. As far back as 1621, after a long bitter winter and the gathering of the first harvest, these early settlers shared a feast with the local Indians and offered prayers of thanksgiving. President Washington proclaimed (宣布) the first national Thanksgiving Day to be celebrated on November 26, 1789. President Lincoln revived the custom in 1863.It was not until 1941 that the US Congress adopted a resolution, setting the fourth Thursday of November as an annual Thanksgiving Day. Thus what began as a religious celebration of the harvest has since become a nationwide holiday.Today Thanksgiving Day is usually a family day, celebrated with a traditional turkey dinner and a happy reunion. Schools are closed on Thanksgiving Day and the day after. Many people, including students studying in another state, often travel long distances to spend the holiday at home.1、 The passage is mainly about _ _ _ _ _ _ _ _ . A. what the Americans do on Thanksgiving Day B. how the Americans spend their Thanksgiving Day C. Thanksgiving Day is an American holiday D. how Thanksgiving Day became a nationwide holiday 2、 Thanksgiving Day was first celebrated in 1621 by _ _ _ _ of the Plymouth Colony. A. President Washington B. the local Indians C. English settlers D. American settlers 3、 What is the meaning of the underlined word “feast” in paragraph 2? A. prayer B. meal C. gathering D. harvest 4、 In 1941 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . A. the first national Thanksgiving Day was celebrated B. people began to celebrate Thanksgiving Day by spending the day at home C. the date for Thanksgiving Day was set by law D. the custom of Thanksgiving Day was brought back to the Americans. 5、 Which of the following statements is true about the celebration of Thanksgiving Day? A. The celebration of Thanksgiving Day was a European custom introduced to America. B. The most popular way of celebrating Thanksgiving Day is travel with friends. C. On Thanksgiving Day, school children usually have a couple of days off. D. Thanksgiving Day started as an occasion for family members to show thanks for one another.统考英语A
  • 静止元件正序阻抗和负序阻抗的关系是什么? A.正序阻抗等于负序阻抗 B.正序阻抗大于负序阻抗 C.正序阻抗小于负序阻抗 D.正序阻抗和负序阻抗的大小没关系 E.电力系统基础(一)