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【简答题】
Where on Earth are you? Navigators (导航员) use lines of latitude and lines of longitude to locate places. Lines of latitude run east and west around Earth. On a map or globe, these lines appear as running sideways or horizontally. Lines of longitude run north and south around Earth. These lines go up and down or vertically on a map or globe. These lines create an imaginary graph paper on the Earth. They make it possible to find an absolute, or exact, location on Earth. They even allow us to give an absolute location to a place out in the middle of the ocean. Lines of latitude tell us how far north or south of the Equator we are. Sailors have used primitive navigation tools, like astrolabes, since ancient times. The astrolabe uses the sun and stars to find an approximate location. Using such tools, they have been able to approximate their distance from the equator. Although their instruments may not have been the high quality we have now, they were incredibly accurate (精确) for their time. Lines of longitude tell us how far east or west of the prime meridian (本初子午线) we are. Sailors constantly looked for new ways to increase their navigation skills. Still, it wasn’t until the 18th century that they were able to measure degrees of longitude. They would have been very envious of the technology available to us today. When we use lines of latitude and longitude together, we can get a very precise location. If we want to identify the absolute location of a point, we look where the latitude and longitude lines cross nearest to that point. We use the coordinates (坐标) for that point as its address. Many maps today include degrees of latitude and longitude. 小题1:______ make it possible for people to find an exact place on Earth. A.Latitudes B.Longitudes C.Navigators D.Sailors 小题2:The second paragraph mainly talks about _______. A.the function of latitude B.the use of the equator C.the invention of astrolabe D.the high quality instruments 小题3: Why do maps include degrees of latitude and longitude? A.To help trade expeditions. B.To locate a precise place. C.To cross the lines of the nearest point. D.To identify how far a place is. 小题4:The best title for this passage is ____________. A.The map and the globe B.Latitude and longitude C.The equator and the prime meridian D.Absolute coordinates
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【单选题】Machine learning frameworks require:
A.
(i) a definition of the task to accomplish;
B.
(ii) a performance metric to evaluate how "good" the model resulting from the machine learning setting will be;
C.
(iii) a search space/family of models for potential models to be learned;
D.
(iv) most importantly, a set of examples for which the predictions to be made are already known.
【简答题】machine learning
【简答题】In the second half of the twentieth century, many countries of the South began to send students to the industrialized countries for further education. They (1) needed supplies of highly trained person...
【简答题】书面表达。 假设你将参加某英语杂志社开展的一次征文活动,征文的内容要求你在电视、手机(cell)和网络 三者中,放弃期中一个并陈述理由。请你以“Which would you give up: TV, cell, or Web? ” 为题,写 一篇英语短文。 注意:1. 字数100左右; 2. 可以适当增加细节,以使行文连贯。 ___________________________________...
【简答题】学校的English Club正以My best friend-为题举行征文活动,请根据下列表格中提示的内容,用英语写一篇征文。 我最好的朋友-James 性别:男      年龄 :13   籍贯:中国扬州   职业 :学生 外貌 高而强壮,看起来很阳光 品质 友好,乐于助人 爱好 打篮球,看电影 生活 习惯 1、早饭吃面包喝牛奶;午饭吃些肉、蔬菜和米饭;晚饭吃得清淡。 2、每周打篮球三次,因为...
【多选题】Which of the following statements about machine learning are correct?
A.
Machine learning can be considered to be the automation of predictive analyses & it generates models based on computer data.
B.
Machine learning relies excessively on the rules, which results in poor portability & scalability.
C.
It can work only in an environment where there are tight constraints & limited objectives. But it cannot process dynamic, non-complete, & unstructured information.
D.
Machine learning is a core part of AI, that is an AI technology enabling systems to learn without being programmed.
【简答题】第二节 书面表达(满分25分) 假如你将参加某英语杂志社开展的一次征文活动,征文的内容要求你在电视、手机(cell)和网络三考中,放弃其中一个并陈述理由。请你以“Which would you give the TV, cell, or”为题,写一篇英语短文。 注意:1.字数100左右; 可以适当增加细节,以使行文连贯。
【单选题】以下哪一项不属于搜索引擎的组成部分?
A.
搜索系统
B.
操作系统
C.
检索系统
D.
索引系统
【单选题】There are three types of machine learning , except _______ .
A.
unsupervised learning
B.
supervised learning
C.
associate learning
D.
reinforcement learning
【单选题】Agriculture must, therefore,____workers and savings to the new industrialized, urbanized sectors if a modern economy is to be achieved.
A.
yield
B.
succumb
C.
subject
D.
resort
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