有两个非典病人，被分别隔离在某医院的两个单独病房中，为了方便患者和医护人员联系，请你根据下列要求，利用所给的器材设计一个电路，画出电路图．要求：甲病人闭合开关，红灯亮电铃响．乙病人闭合开关，绿灯亮电铃响．
由题知，红绿灯并联，甲病人开关控制红灯；乙病人开关控制绿灯；又因为当病房里的病人闭合开关时电铃就响，则电铃在干路上，所以L1与L2并联后再与电铃串联，电铃在干路上，电路图如下图所示．
| 完型填空。从A、B、C三个选项中，选择可以填入空白处的最佳答案。 | ||||
| Chen Zhonghe, head coach of China's women volleyball team, is an optimistic (乐观的) person. He keeps 1 even during the hardest time. Chen 2 his team to win the World Cup in 2003. The team then won at the 2004 Athens Olympics. But when Chen first took charge of (负责) the team in 2001, few people belived he could take the team to the 3 . Some even said Chen could not be a good 4 , for he couldn't even speak Mandarin (普通话) well. The worst time was at the World Championships in 2001. Chen didn't want his team to meet strong Russian team early, 5 they lost a few games on purpose (故意). This led to a bad 6 . They just got the fourth. People were 7 with him. But Chen wasn't disappointed. He stood up from where he fell down. He was 8 the team could work together and get over its difficulties. And 9 he succeeded in 2003. "Sunlight always comes 10 wind and rain," said Chen. | ||||
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