MOOC 学术英语读写与交流(河北工业大学)1205604801 最新慕课完整章节测试答案

01 Understanding Hacking Drones

1、单选题：
‌Which is not considered to be the three main communication links?​
选项：
A: The incoming navigation signal from GPS satellites  
B: One or more signals to notify other aircrafts 
C: A two-way link
D:  A wireless tether
答案: 【  A wireless tether】

2、单选题：
‌Which is the correct explanation of “Achilles’ Heel” in this passage?​‌ ​‌​‌  ​‌​‌​
选项：
A: The name of one part of body 
B: A deadly weakness or vulnerable point 
C: A name of a character in a story 
D: A mistake made by human being 
答案: 【 A deadly weakness or vulnerable point 】

3、单选题：
​What is the solution for the small drone to stay out of the way of other aircraft?‏​‏​‏
选项：
A: GPS system 
B: Automatic Dependent Surveillance—Broadcast 
C: Spoofing 
D: Inertial guidance sensors
答案: 【 Automatic Dependent Surveillance—Broadcast 】

4、单选题：
‎Which is not the harm of spoofing to the drone?​‎​‎​
选项：
A: Threating a GPS system 
B: Jamming the signal from drone 
C: Blocking reception of its navigation signals 
D: Causing a pilot to die
答案: 【 Causing a pilot to die】

5、单选题：
‍Compared to civil GPS, what is the serious problem of ADS-B to the drone?‍‍‍‍‍‍‍‍‍
选项：
A: It is expensive to access to 
B: Its transmissions are not authenticated 
C: It is hard to control 
D: It is rarely used
答案: 【 Its transmissions are not authenticated 】

6、单选题：
‏To maneuver a drone up, down, sideways or forward require three main communication links . Please match the name of the feature with the sentence.‍
选项：
A: Passive voice 
B:  Nominalization 
C: Non-finite forms of verbs
D: All the above.
答案: 【 Non-finite forms of verbs】

7、单选题：
‎It was only saved from crashing by an operator who was poised to override the spoofing commands. Please match the name of the feature with the sentence.‌‎ ‌‎‌‎‌
选项：
A:  Passive voice 
B: Nominalization 
C: Non-finite forms of verbs
D: All the above.
答案: 【  Passive voice 】

8、单选题：
‌By trying to adjust its location aloft based on erroneous data, the drone actually started to head directly toward the desert floor. Please match the name of the feature with the sentence.‍‌‍‌‍
选项：
A: Passive voice
B: Nominalization 
C: Non-finite forms of verbs
D: All the above
答案: 【 Non-finite forms of verbs】

9、单选题：
​Staying out of the way of other aircraft is especially challenging for small drones. Please match the name of the feature with the sentence.‌​‌​‌
选项：
A:  Passive voice
B: Nominalization 
C: Non-finite forms of verbs
D: All the above
答案: 【 Non-finite forms of verbs】

10、单选题：
‍The possibility of a midair crash between a drone and another aircraft will further complicated acceptance of drones. Please match the name of the feature with the sentence.‏‍‏
选项：
A: Passive voice 
B: Nominalization 
C: Non-finite forms of verbs
D: All the above
答案: 【 Nominalization 】

11、单选题：
‎Which of the following IS LEAST possibly the purpose of making a presentation?‍‎‍
选项：
A: To inform the audience of a fact 
B: To train the audience 
C: To persuade the audience in order to sell some certain products 
D: To show off the speaker’s competency to the audience
答案: 【 To show off the speaker’s competency to the audience】

12、单选题：
‎ The main structure of a presentation usually includes _____.‌‎‌
选项：
A:  An introduction,