题目

硅光电池是一种太阳能电池，具有低碳环保的优点，如图所示，图线a是该电池在某光照强度下路端电压U和电流的关系图象，图线b是某电阻R的U－I 图象。在该光照强度下将它们组成闭合回路时，则（） A . 硅光电池的电动势为3.6V B . 硅光电池内阻为12.5W C . 电阻R的阻值为10W D . 电源输出功率为0.72W 答案：A,C根据所给信息提示，选择正确答案。Guide to the best hotels in BoswellNumbers of roomsPriceThings providedSingleDoubleFirst Hotel 222 Edward Road Tel. 414-6433120$25$35Air-conditioned (有空调的) rooms with phone, TV and radio. There is a French restaurant, a nightclub, a swimming pool. Close to the city centre.Fairview Hotel 129 North Road Tel. 591-562050$12$18Close to the airport. Telephones in each room. There is a bar, a restaurant and a swimming pool.Orchard Hotel 233 Edward Road Tel. 641.-6646120$15$20Face First Hotel with a European restaurant, a coffee shop and a nightclub. TV in each room with dry-cleaning service.Osaka Hotel 126 Winning Road Tel. 643.-6646180$30$50Air-conditioned rooms with Japanese and Chinese restaurants, shops, a swimming pool and a big garden.1.The cheapest room for a couple is _____ in _____.A. $30; Osaka Hotel B. $35; First Hotel C. $15; Orchard Hotel D. $18; Fairview Hotel2.The number of rooms in Osaka Hotel is _____.A. 120 B. 50 C. 180 D. 2403.Which hotel faces Orchard Hotel?A. First Hotel. B. Osaka Hotel. C. Fairview Hotel. D. None of the above.4.If a traveller likes to eat French food, the hotel at _____ is the right place for him.A. 233 Edward Road B. 126 Wining Road C. 129 North Road D. 222 Edward Road5.You’d better call _____ to book a room if you hope to live near the airport.A. 591-5620 B. 641-6646 C. 643-6646 D. 414-6433