第一周 第1章 绪论

第1周知识测验

1、单选题:
‍上图中局部约束在哪点:(  )‌
选项:
A: F
B: B
C: C
D: E
答案: 【 F点我阅读全文

第1讲 金融风险管理概述

第1讲 测试题

1、单选题:
‎以下关于金融风险的表述错误的是(   )。‎
选项:
A: 金融风险是金融活动的内在属性
B:   不确定性是金融风险产生的根源
C: 不确定性是风险的必要且充分条件
D: 金融风险具有客观性和普遍性
答案: 【 不确定性是风险的必要且充分条件点我阅读全文

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

1.绪论

第一章单元测试

1、多选题:
1. 信息论研究的目的就是要找到信息传输过程的共同规律,以提高信息传输的_________,使信息传输系统达到最优化。‎​‎
选项:
A: 可靠性    
B: 有效性
C: 保密性
D: 认证性
答案: 【 可靠性    ;
有效性;
保密性;
认证性
点我阅读全文

Unit2JobsandResponsibilities

QuizforUnit2

1、单选题:
If the ownership of the companies is not open to the public, we call them _______. ​
选项:
A: A. closely held companies   
B: B. publicly held companies 
C: C. private company        
D: D. multinational companies
答案: 【 A. closely held companies   点我阅读全文

第5章 脂质

脂质

1、单选题:
​‌​脂肪酸是指天然脂肪水解得到的脂肪族()羧酸。‌
选项:
A: 一元
B: 二元
C: 三元
D: 多元
答案: 【 一元点我阅读全文

第一章 计算机辅助设计概论

第一章 计算机辅助设计概论

1、判断题:
‌计算机辅助设计,简称CAD,英文全称 Computer Aided Drawing ‏
选项:
A: 正确
B: 错误
答案: 【 正确点我阅读全文

第一讲 唐宋诗词传统文化的瑰宝

第一讲单元测验

1、单选题:
‎被称为诗余、长短句、曲子词、乐府、乐章的一种文体是‎
选项:
A: 诗歌
B: 散曲
C: 词
D: 楚辞
答案: 【 词点我阅读全文

第一周数字信号处理绪论、信号的采样及恢复

数字信号处理绪论、信号的采样及恢复

1、单选题:
‎与模拟信号相比,数字信号处理的显著优点是( )​
选项:
A: 高精度
B: 高稳定且灵活性好
C: 易于大规模集成
D: 以上均是
答案: 【 以上均是点我阅读全文

01 基础篇

01 基础篇

1、单选题:
‏短期贷款的利率是多少?‏
选项:
A: 1%
B: 5%
C: 10%
D: 15%
答案: 【 5%点我阅读全文