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多项选择题9: 轻触开关,又叫按键开关,由嵌件、基座、弹片、按钮、盖板等组成,轻轻按下开关接通,松开即断开,本节课教学项目LED手电筒电路使用的是四脚轻触开关,有关这个轻触开关阐述正确的是:A.
在轻触开关底部我们可以看“北”字图形。
B.
“北”字左边两个引脚是固定导通的。
C.
“北”字右边两个引脚是固定导通的。
D.
当按钮按下后,轻触开关的四个脚导通,当松开按钮后,“北”字左边两个引脚和“北”字右边两个引脚将断开。
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【单选题】Task 1 Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40. For each question or statement there are 4 choices marked A, B, C, a...
A.
will follow their interests and ambition
B.
like to visit potential employer's office
C.
Eke to visit every employer's office
D.
get a job related to your education
【单选题】An introductory sentence for a brief summary of the passage is given below. Complete the summary by adding the THREE answer choices that express the most important ideas in the passage. Some answer ch...
A.
To show how silly it was to pay arbitrary prices for stocks.
B.
To make his presentation of his theory more entertaining.
C.
To argue that the market behaved like a real person.
D.
To demonstrate the wisdom of following market trends.
【简答题】For Questions 6～10 ,you will hear a passage about loneliness. While you listen, complete the sentences and answer the question. Use not more than 3 words for each answer. You will hear the recording t...
【简答题】Listen to the passage again and complete the following sentences with what you hear. 1 She never mentioned it again. My heart _______ when I think about it. 2 This is a question about the change of sh...
【简答题】You wll hear the introduction to a job interview, which is 13-week interview with all kinds of task. As you listen, for question 1-12, complete the notes, using up to three words or a number. Who is T...
【简答题】Complete the following statements with information that you get from the video. The difference between daily research and academic research: Daily research is 1)__________and 2)______ information usua...
【单选题】关于电子商务的概念模型的描述中,错误的说法是( )
A.
强调信息流、商流、资金流和物流的整合
B.
信息流作为连接的纽带贯穿于电子商务交易的整个过程中
C.
电子商务概念模型中的实体主要指购买商品的顾客
D.
模型中的资金流主要指资金转移过程
【简答题】Listen to a dialogue and answer some questions about it. You will hear the dialogue and the questions only once. Answer each question in a complete sentence after you have heard it. 1. What will the s...
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