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发布时间：2022-01-07
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Given a codeword c=（）. A cyclic shift on c of two-bit toward the left will get a codeword
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更多“Given a codeword c=（）. A cyclic shift on c of two-bit toward the left will get a codeword”相关的问题
第1题
For a () cyclic code, a cyclic shift on any codeword produces another codeword in the code.
第2题
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第3题
6. Overview of Senate The modern word Senate is derived from the Latin word senātus (senate), which comes from senex, 'old man'. The members or legislators of a senate are called senators. The Latin word senator was adopted into English with no change in spelling. Its meaning is derived from a very ancient form of social organization, in which advisory or decision-making powers are reserved for the eldest men. For the same reason, the word senate is correctly used when referring to any powerful authority characteristically composed by the eldest members of a community, as a deliberative body of a faculty in an institution of higher learning is often called a senate. This form adaptation was used to show the power of those in body and for the decision-making process to be thorough, which could take a long period of time. The original senate was the Roman Senate, which lasted until at least AD 603, although various efforts to revive it were made in Medieval Rome. In the Eastern Roman Empire, the Byzantine Senate continued until the Fourth Crusade, circa 1202–1204. Modern democratic states with bicameral parliamentary systems are sometimes equipped with a senate, often distinguished from an ordinary parallel lower house, known variously as the "House of Representatives", "House of Commons", "Chamber of Deputies", "National Assembly", "Legislative Assembly", or "House of Assembly", by electoral rules. This may include minimum age required for voters and candidates, proportional or majoritarian or plurality system, and an electoral basis or collegium. Typically, the senate is referred to as the upper house and has a smaller membership than the lower house. In some federal states senates also exist at the subnational level. In the United States all states with the exception of Nebraska (whose legislature is a unicameral body called the "Legislature" but whose members refer to themselves as "senators") have a senate. There is also the US Senate at the federal level. Similarly in Argentina, in addition to the Senate at federal level, eight of the country's provinces, Buenos Aires, Catamarca, Corrientes, Entre Ríos, Mendoza, Salta, San Luis (since 1987) and Santa Fe, have bicameral legislatures with a Senate. Córdoba and Tucumán changed to unicameral systems in 2001 and 2003 respectively. In Australia and Canada, only the upper house of the federal parliament is known as the Senate. All Australian states other than Queensland have an upper house known as a Legislative council. Several Canadian provinces also once had a Legislative Council, but these have all been abolished, the last being Quebec's Legislative council in 1968. In Germany, the last Senate of a State parliament, the Senate of Bavaria, was abolished in 1999. Senate membership can be determined either through elections or appointments. For example, elections are held every three years for half the membership of the Senate of the Philippines, the term of a senator being six years. In contrast, members of the Canadian Senate are appointed by the Governor General upon the recommendation of the Prime Minister of Canada, holding the office until they resign, are removed, or retire at the mandatory age of 75. 11. Which of the following statement about Senate is true according to the passage?
A、The first Senate originated from Greece.
B、Senate is always known as the lower house with a larger membership.
C、All states of the US have a Senate.
D、Senate members are selected through elections or appointments.
第4题
For a () cyclic code, a cyclic shift on any codeword produces another codeword in the code.
第5题
The output codeword of a source encoder increases the redundancy to the input codeword.()
第7题
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第8题
案例 三:一节自然课 曾有一个中国教育考察团到美国的一所小学听课,老师讲的是 “蚯蚓”。老师将课前准备的一包蚯蚓放在讲台上,要求孩子们每人提一条放在课桌上,由于孩子们都很小,或从来没有捉过蚯蚓,教室里乱作一团,不时还有孩子惊恐的尖叫声。教师站在一旁一直不做声。这一过程一直持续了 15 分钟。终于每个孩子都捉了一条蚯蚓放在课桌上了。 这时,老师才开始“上课”。要求孩子们仔细观察,看课桌上的蚯蚓有什么特点,然后发表自己的看法。 有孩子说:“蚯蚓身上一环一环的。” 有孩子说:“蚯蚓贴地的一面毛茸茸的。” 每一个孩子的回答,老师都给予鼓励。 有孩子说:“我做了一个实验。我把蚯蚓切成两段,结果两段都还不停地动,说明蚯蚓生命力很旺盛。” 老师对此更是大加赞赏。 又一个孩子说:“我也做了一个实验。我用一根线拴在蚯蚓的身上,然后吞进喉咙里,过了一会再拉出来看,结果蚯蚓仍然活的。这进一步证明蚯蚓生命力很强。” 老师异常激动地说:“你太了不起了!你为了科学实验大胆尝试的精神,值得老师和每一个同学学习。”于是全班同学为他热烈鼓掌。 这堂课就这样热热闹闹地结束了。课后,考察团与这位老师座谈。问这老师:“学生捉蚯蚓的过程持续了 15 分钟,你为什么一言不发 为什么不让课堂尽快安静下来呢 ”这位年轻的女老师只回答了一句话:“假如这些孩子连一条蚯蚓都捉不住,那我今天的课还有什么价值呢 ”
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