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体量模型建立

体量单元测验

1、单选题：
‎绘制体量时，哪两个键结合，可以实现视图导航器的功用？‌
选项：
A: ctrl加左键
B: ctrl加鼠标中间滚轮
C: ctrl加右键
D: shift加中间滚轮
答案: 【 shift加中间滚轮】点我阅读全文

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第1章直流电机

第1章直流电机单元测验

1、单选题：
​如果直流电机的励磁电流等于电枢电流，则这台电机为（     ）。‏
选项：
A: 他励直流电机
B: 并励直流电机
C: 串励直流电机
D: 复励直流电机
答案: 【 串励直流电机】点我阅读全文

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第一章 直流电路

KCL

1、判断题：
‌基尔霍夫电流定律成立的物理原理是电流的连续性原理。​
选项：
A: 正确
B: 错误
答案: 【 正确】点我阅读全文

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第一讲 导论中国哲学与中国哲学史研究

第一讲之七随堂测验

1、判断题：
‍哲学所探讨所思考的最主要最一般的问题是人与世界的关系问题。‍ ‍‍‍‍​‍
选项：
A: 正确
B: 错误
答案: 【 正确】点我阅读全文

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0绪论

绪论单元测试

1、单选题：
提出“灭人之国，必先去其史”警言的著名学者是：‎
选项：
A: 顾炎武
B: 龚自珍
C: 梁启超
D: 陈寅恪
答案: 【 龚自珍】点我阅读全文

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第1讲交通运输法概述

第1讲单元测验

1、单选题：
‍交通运输法律关系的主体有一方必然是(　　　）。‎
选项：
A: 政府
B: 交通运输企业
C: 旅客
D: 货主
答案: 【 交通运输企业】点我阅读全文

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第一章课程介绍

第一章单元测试

1、单选题：
​篮球比赛是      名运动员在场地中完成的同场对抗。​
选项：
A: 10
B: 9
C: 8
D: 11
答案: 【 10】点我阅读全文

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第一周 第1章 金属材料及热处理（一）

单元测试

1、单选题：
‌下列材料中，不属于黑色金属的是（  ）。  ‍
选项：
A: 合金钢
B: 轴承合金
C: 特殊性能钢 
D: 麻口铸铁
答案: 【 轴承合金】点我阅读全文

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第1章 College Life 校园生活

第1章测验

1、单选题：
‏Please select a word to replace the underlined one. ‍‏Doing homework is important, but it’s not always enough.‍‏‍
选项：
A: adequate
B: adaptable
C: adoptive
D: admirable
答案: 【 adequate】点我阅读全文

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Lesson1

AcademicWriting&CriticalThinking

1、单选题：
Read the following passage about Zoos and answer the questions.‌‌Zoos have existed in some form since at least 2500 BC in Egypt and Mesopotamia, where records indicate giraffes, bears, dolphins, and other animals were kept by aristocrats. The oldest still operating zoo in the world, Tiergarten Schönbrunn in Vienna, opened in 1752. Although controversy has historically surrounded zoos, from debates over displaying "exotic" humans in exhibits to zookeepers not knowing what to feed animals, I do believe that zoos should exist. ①In my opinion, zoos are important institutions that promote scientific research and public education, and save animals from extinction.‌First of all, zoos produce helpful scientific research. Since so many diseases can be transmitted from animals to humans, such as Ebola and the bird flu, zoos frequently conduct disease surveillance research in wildlife populations and their own captive populations that can lead to a direct impact on human health. Take the zoos in the United Stated as an example. In 2017, 173 accredited US zoos spent $25 million on research, studied 485 species and subspecies of animals, worked on 1,280 research projects, and published 170 research manuscripts.‌②Zoos can also educate the public about animals and conservation efforts. According to a study of 26 zoos worldwide published in Conservation Biology, visitors to zoos increased their knowledge of biodiversity and specific individual actions to protect biodiversity. Robin Ganzert, PhD, President and CEO of American Humane, once stated, "Zoos provide people, especially impressionable children, with the opportunity to see these remarkable animals up close. People won't protect what they don't love, and they can't love what they don't know.” ③It is zoos that give people the chance to appreciate the animals from different corners of the world in real life.‌In addition, zoos help save species from extinction and other dangers. According to records, there were only nine California condors in the wild in 1985. ④However, a joint conservation effort between the San Diego and Los Angeles Zoos with other organizations resulted in a population of 276 California condors in the wild and another 170 in captivity by 2016. The truth is that zoos are working to save polar bears, tigers, and wild African elephants from habitat loss, apes and rhinos from poachers, dolphins and whales from hunters, and bees and butterflies from population declines, among many other efforts to help many other animals.‌In conclusion, zoos do bring a lot of benefits to mankind and thus have a reason to exist. No matter in the promotion of scientific research and public education or in the save of animals from extinction, they have indeed made a huge difference.‌ ‌1. What is the main argument of the author?‌
选项：
A: Zoos should exist.
B: Zoos help save species from extinction and other dangers.
C: Zoos can promote scientific research and public education, and save animals from extinction.
D: Zoos should exist because they can help promote scientific research and public education, and save animals from extinction.
答案: 【 Zoos should exist because they can help promote scientific research and public education, and save animals from extinction.】点我阅读全文

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