问题
单项选择题
王水的比例是硝酸与盐酸的比值为（）
A.1：3
B.3：1
C.A.与B.都可以
答案
参考答案：A
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王水的比例是硝酸与盐酸的比值为（）
A.1：3
B.3：1
C.A.与B.都可以
参考答案：A
| 阅读理解. | ||||||||||||||||||
| Welcome to Windsor Castle , the oldest and largest occupied castle in the world. Windsor is one of the official residences of Her Majesty the Queen. As the Castle is a working Royal Palace, official engagements may occasionally limit access to those areas usually open to visitors. Guidebooks and Audio Tours The official guidebook and audio tour of the Castle provide information on St Ceorge's Chapel, the State Apartments and the magnificent works of art on display. Both are available at the start of your visit in the shop opposite the exit. Tours of the Castle The tours introduce Windsor's history and the Castle's use today. Accompanied by Castle Wardens(守卫) ,the tours are free of charge and take approximately 30 minutes. St George's Chapel Evensong(晚祷) is held daily at 17 : 15 and visitors are welcome to attend. The Chapel is open only to worshippers on Sunday. Changing of the Guards The Changing of the Guards takes place at 11 :00 ,weather permitting, from Monday to Saturday between April and the end of June , and on every second day for the rest of the year, with the exception of Sundays. Please ask a Castle Warden to direct you to where the ceremony takes place. Refreshments Refreshment facilities are not available within the Castle, but there are many shops and restaurants nearby in the town. Visitorsmayobtainreentry(重新进入) permits from the Lower and Middle Ward Shops. Bottled water is available from the Middle Ward Shop.
Visitorsarrivingafter15:00fromMarchtoOctoberareadvisedtovisitStGeorge's Chapelfirst,toensureacompletevisit. | ||||||||||||||||||
| 1. Windsor Castle is not open to the public from time to time because ______ | ||||||||||||||||||
| A. the government officials are busy making engagements with visitors B. the Queen is not allowed to be disturbed when she is working there C. there are some official activities held there once in a while D. it needs repairing and decorating before some important occasions | ||||||||||||||||||
| 2. Which of the following statements is true according to the passage?______ | ||||||||||||||||||
| A. The official guidebook provides information on the refreshment facilities. B. During their tour, visitors can eat and shop within the Castle at any time. C. Every visitor who is interested in religion can attend the evensong on Sunday. D. Visitors cannot watch the Changing Guard ceremony on Sundays in October. | ||||||||||||||||||
| 3. If Tommy wants to go to St George's Chapel in July, he can go there ______ | ||||||||||||||||||
| A. at 16:15 B. at 15 :00 C. at 17:15 D. at 16:30 | ||||||||||||||||||
| 4. The passage is likely to be written for______ | ||||||||||||||||||
| A. the tourists from all over the world B. the working staff in Windsor Castle C. the visitors to Windsor Castle D. the guards in the Royal Palace |