题干

根据如图甲所示的实物连线图,在图乙方框内画出对应的电路图.(要求连线要横平竖直,尽量使电路图简沽美观)

上一题 下一题 0.0难度 选择题 更新时间:2020-03-27 07:47:42

答案(点此获取答案解析)

解:电流从正极开始分支,一支经灯泡L1,另一支经开关S2、灯泡L2,然后两支汇合共同经过开关S1回到电源负极.如图所示:

同类题2

阅读下文,回答问题

公园一角

    公园的一角真美啊!

    在碧波粼粼的人工湖上,人们划着船,尽情欣赏着湖光水色。一朵洁白的荷花冒出水面,荷花上站着一只展开翅膀的仙鹤,仿佛准备起飞。仔细一看,那荷花,那仙鹤都是能工巧匠雕塑成的。真了不起!从“仙鹤”嘴里喷出的水珠,纷纷落入湖中,水面像绽开的一朵朵小梅花,好看极了。

    人工湖旁边是一个用石头围成的花坛。花坛里,争芳斗艳的玫瑰花特别逗人喜爱。有的花瓣全绽开了,有的才绽开两三片,有的还是花骨朵儿,有的饱胀得像要破裂似的……真是一朵比一朵美,一朵比一朵艳,一朵有一朵的姿态。

    花坛对面有一座怪石砌成的假山。从假山旁边绕过去,顺着石铺的小路就可以到达小山。小山上绿树成荫,一座具有民族特色的凉亭屹立在绿树丛中,绿色的瓦和红色的柱子在金色的阳光照射下,光彩夺目。亭内的游人有的坐在右凳上休息,有的正兴致勃勃地欣赏亭顶那六个向上翘着的角。亭外,垂柳在微风的吹拂下摆动着柔软的枝条,好像仙女们在展示秀丽的身姿;青松在阳光下更显得苍翠挺拔。

    站在亭子边向外望去,一条铺盖着绿色琉璃瓦的长廊出现在眼前。如果不仔细看,还以为是一列火车横卧在湖边呢!

    啊!多美的公园一角!

同类题4

完形填空

     As a music teacher, I have always known that music touches the soul. It can 1 all kinds of barriers to reach students in a very special way. It can be the2for each child to find their light. I would like to3 a story about it.

       Fora few years I was4  with the opportunity to teach disabled students. One of my most5 students was a five­year­old girl called Vanessa, who had difficulty walking, and could not speak. We6 sat on the floor for our music lessons and Vanessa liked to7 on my lap (膝盖). One of her favorite songs was “John the Rabbit” . It was a call and response song where I sang the call and the students 8 twice while singing the repeating phrase, “Oh, yes!” Vanessa liked to 9her hands together with mine and clap with me. We probably performed that song during every class, Vanessa and I clapping together. But she 10 said or sang a word.

         One day, when the song was finished, Vanessa turned around, 11me in the eye, clapped her tiny hands twice and said the words “Oh, yes!” I opened my mouth in12and for that moment I was the one who could not speak. When my heart13started beating again I looked over at the assistant teacher to find her also14. Through music we had made an awesome connection.

        Several years later, I met Vanessa on the street in town. She waved with a big 15on her face and then clapped her hands twice, imitating the song we had 16so many times in our music class. The little girl,17 her connection with music, left an impression on me that will last forever. Every child has the 18 to learn and grow. It is up to us to19 the way to teach each and every one of our students. We all must find each child's 20.