7[多选题] 下列描述正确的是（） A.EEPROM具有数据长期保存的功能且比EPROM在数据改写上更方便 B.DAC的含义是数-模转换、ADC的含义是模数转换 C.积分型单稳触发器 - 查题网

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河南成教 / 电子技术基础

正确率：100%

7[多选题]
下列描述正确的是（）

A.EEPROM具有数据长期保存的功能且比EPROM在数据改写上更方便

B.DAC的含义是数-模转换、ADC的含义是模数转换

C.积分型单稳触发器电路只有一个状态

D.上面描述至少有一个不正确

积分

电子技术基础

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题干阅读下面的短文，从A、B、C三个选项中选出一个正确答案。 If you think handshakes are just a gesture of greeting, then think again! A handshake is not only a way of greeting; it can also show your personality. Since we all want to make a good first impression, it is important to know the right manners for shaking hands. Stand up and maintain eye contact while shaking hands. If you are seated when someone comes for a handshake, stand up and shake his or her hand. It is impolite to be seated. Keep the right distance between the two of you; not too close, but enough distance to shake hands well. Keeping eye contact makes the other person feel welcome and comfortable. Keep a handshake brief and firm. You should let go of each other's hand after 2-3 seconds. Make sure your handshake ends before your conversation does. One's handshake should show a feeling of strength and warmth. The hand should be firm and not lifeless like seaweed. Then, how firm should a handshake be? Just grasp the person's hand completely and do not press it too hard. 1. Which of the following statements about the significance of handshakes is NOT true? 回答ABC正确正确答案是：A获得1.00分中的1.00分A. Handshakes are just a gesture of greeting.B. Handshakes are more than a way of greeting.C. Handshakes can show our personality.2. If you are seated when someone comes for a handshake, you should 回答ABC正确正确答案是：A获得1.00分中的1.00分.A. stand up and shake his or her handB. keep seated and shake his or her handC. bow and say hello to him or her3. Keeping eye contact while shaking hands makes the other person feel 回答ABC正确正确答案是：B获得1.00分中的1.00分.A. nervousB. comfortableC. afraid4. How long does a handshake usually last? 回答ABC正确正确答案是：C获得1.00分中的1.00分A. As long as the conversation lasts.B. 3 minutes.C. 2-3 seconds.5. Which of the following can best describe a proper handshake? 回答ABC正确正确答案是：B获得1.00分中的1.00分A. Brief and strong.B. Brief and firm.C. Brief and soft.管理英语1