某课外小组用两个开关、一个电源、导线若干，将一个灯泡和一个电

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问题应用设计题

某课外小组用两个开关、一个电源、导线若干，将一个灯泡和一个电铃并联后接在电路中，当同时闭合两个开关，才能使灯泡发光，电铃发声；若只闭合其中某一个开关，灯泡不亮，电铃不响；若只闭合另一个开关，则灯泡发光，但电铃不响，根据以上要求，请画出符合要求电路图．

答案

如图所示：

阅读理解

1. Good morning, good morning. Good morning to you. The day's just beginning. There's so much to do.	2. I'm at the beach look at me, living on an island by the sea. I like to dive and I like to swim, the fish and the starfish are my friends.
3. There was a farmer had a dog, And Bingo was his name-o. B-l-N-G-O! B-l-N-G-O! B-l-N-G-O! And Bingo was his name-o!	4. The wheels on the bus go round and round, Round and round, round and round. The wheels on the bus go round and round, All through the town.

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