问题
问答题
如图所示的电路图中，小灯泡L1、L2、电铃并联，开关S1控制整个电路．S2只控制电铃．按电路图将图中各元件用笔画线代替导线连成电路．
答案
采用“电流流向法”，电流从电源正极出发，依次串联开关S1、开关S2、电铃回到电源的负极，再将灯泡L1和灯泡L2分别并联在开关S1与电铃的两端即可，如下图所示：
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如图所示的电路图中，小灯泡L1、L2、电铃并联，开关S1控制整个电路．S2只控制电铃．按电路图将图中各元件用笔画线代替导线连成电路．
采用“电流流向法”，电流从电源正极出发，依次串联开关S1、开关S2、电铃回到电源的负极，再将灯泡L1和灯泡L2分别并联在开关S1与电铃的两端即可，如下图所示：
Several years ago, while attending a communication course, I experienced a most unusual process. The instructor asked us to list anything in our past that we felt 16 of, regretted, or incomplete about and read our lists aloud. This seemed like a very 17 process, but there's always some brave soul in the crowd who will volunteer. The instructor then 18 that we find ways to 19 people, or take some action to right any wrongdoings. I was seriously wondering how this could ever 20 my communication. Then the man next to me raised his hand and volunteered this story: “Making my 21 , I remembered an incident from high school. I grew up in a small town. There was a Sheriff none of us kids liked. One night, my two buddies(老兄) and I decided to play a 22 on him.” “After drinking a few beers, we climbed the tall water tank in the middle of the town, and wrote on the tank in bright red paint: Sheriff Brown is a FOX. The next day, almost the whole town saw our glorious 23 . Within two hours, Sheriff Brown had us in his office. My friends told the truth but I lied. No one 24 found out.” "Nearly 20 years later, Sheriff Brown’s name 25 on my list. I didn't even know if he was still 26 . Last weekend, I dialed the information in my hometown and found there was a Roger Brown still listed. I tried his number. After a few 27 , I heard, “Hello?” I said, “Sheriff Brown?” Paused “Yes”. “Well, this is Jimmy Calkins.” “And I want you to know that I did it.” Paused. “I knew it!” he yelled back. We had a good laugh and a 28 discussion. His closing words were: “Jimmy, I always felt bad for you because your buddies got it off their chest, but you were carrying it around all these years. I want to thank you for calling me … for your sake.” Jimmy inspired me to 29 all 101 items on my list within two years, and I always remember what I learned from the course: It's never too late to 30 the past wrongdoings.
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