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第二章 孟德尔式遗传分析

单元测验

1、单选题：
‏分离定律证明,杂种F1形成配子时,成对的基因（）​
选项：
A: 分离, 进入同一配子
B: 分离, 进入不同配子
C: 不分离, 进入同一配子
D: 不分离, 进入不同配子
答案: 【 分离, 进入不同配子】点我阅读全文

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第2讲路基土的特性及设计参数

第二讲对应单元测试截止时间2020年3月10日0000

1、判断题：
‎粉性土属于不良材料，最容易引起路基病害‎
选项：
A: 正确
B: 错误
答案: 【 正确】点我阅读全文

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第一周建筑与环境

1.4随堂测验

1、单选题：
‎格雷斯农场河畔建筑是哪个建筑设计事务所的作品？‌
选项：
A: RCR事务所
B: BIG事务所
C: SANAA 事务所
D: 蓝天组
答案: 【 SANAA 事务所】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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第一章 认识篇

4.课程测试

1、判断题：
​将两个以上的色彩元素，根据不同的目的性，按照一定的构成原理和形式美法则，重新组合搭配，构成理想而又富于美感的色彩关系，这种对色彩的创造过程和结果，就是色彩构成。‎​‎
选项：
A: 正确
B: 错误
答案: 【 正确】点我阅读全文

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3-5动量守恒定律

反冲练习

1、单选题：
一颗手榴弹被投出后到达最高点时的速度为v0＝10 m/s，设它炸成两块后，质量为0.4 kg的大块速度大小为250 m/s, 方向与原来方向相反，若取v0方向为正方向，则质量为0.2 kg的小块速度为(　　)m/s‌‎‌
选项：
A: －470 
B: 530
C: 470
D: 800
答案: 【 530】点我阅读全文

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第一章基础知识

单元测试

1、单选题：
‌In a standard format of business email,s we are not necessary to begin with ___ according to the video.‌
选项：
A: To: 
B: From:
C: Subject:
D: Date:
答案: 【 Date:】点我阅读全文

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第一讲铸造工艺理论基础

随堂测验

1、单选题：
冒口的主要作用是        。‌‏‌
选项：
A: 集渣
B: 补缩
C: 排气
D: 定位
答案: 【 补缩】点我阅读全文

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Chapter2TheBasicTheoryUsingDemandandSupply

2.1随堂测验

1、判断题：
‏对生产者和消费者而言，相对价格比绝对价格更具有指导意义。​
选项：
A: 正确
B: 错误
答案: 【 正确】点我阅读全文

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第一周绪论+第一章渗流基本概念和基本定律

第一章测验题

1、单选题：
​地下水实际流速是     。‎
选项：
A: 将真实的地下水质点流速矢量在典型单元体V0的空隙体积上取平均值
B: 将真实的地下水质点流速矢量在典型单元体V0（包括空隙和固体）上取平均值
C: 达西流速
D: 将真实的地下水质点流速矢量在过水断面上取平均值
答案: 【 将真实的地下水质点流速矢量在典型单元体V0的空隙体积上取平均值】点我阅读全文

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