题目

下列有关人体水分调节的叙述正确的是 ( ) A . 大量饮水，则抗利尿激素分泌增加 B . 渴觉中枢兴奋同时抗利尿激素分泌减少 C . 抗利尿激素分泌减少，则尿量增加 D . 细胞外液渗透压降低，则尿量减少 答案：CLondon is one of the most popular sites in the world for tourists to visit. If you are planning a trip to London in the future, you’re lucky. There are a variety of attractions for you to enjoy. One of the most popular tourist attractions in London is the Tower of London. Founded more than 900 years ago, the Tower of London is one of the world’s most famous towers and has changer a lot. Here, you can also find the seven raven（乌鸦）which live in the Tower. There is a story that says：If there are no ravens in the Tower, the Tower and the kingdom will fall. There are also lots of tours, exhibits and special events that you can enjoy throughout the year. Another popular place to visit is Westminster Abbey. It was set up in 1065 by Edward the Confessor. Visitors to Westminster Abbey can enjoy its beautiful special Gothic architecture（哥特式建筑）. There are also lots of memorials of Kings and Queens to enjoy. Excellent transportation is available here by bus or tube from many locations in London. Buckingham Palace is another place with a rich history to discover. It’s the official London residence（住处） of Queen Elizabeth II. During August and September, you can visit the State Rooms and see the Changing of the Guards. The Queen’s Gallery is opened to the public daily. Checking the official timetable before you make sure to visit the Palace is a must, because it is not open year round. If you’re expecting to enjoy one of London’s most beautiful landscapes, Hyde Park is the place for you. There are many activities available here to enjoy, including guided walking tours, swimming, tennis, and horse riding. In addition, many concerts are performed in Hyde Park. There’s also a playground available for the kids. Tourist attractions in LondonThe Tower of London *Built （71） __________900 years ago, the Tower of London is world-famous.* There are many ravens living in the Tower. （72） __________to an old story, if there are no ravens in the Tower of London, the Tower and the kingdom will fall.* During the （73） __________year, you can enjoy lots of tours, exhibits and special events.Westminster Abbey（74） __________in 1065, Westminster Abbey is famous for its beautiful special Gothic architecture and memorials of Kings and Queens.Buckingham Palace* With a rich （75） __________to discover, Buckingham Palace is the official London residence of Queen Elizabeth II.*（76） __________August to September, you can visit the State Rooms and see the Changing of the Guards. The public can get （77） __________to the Queen’s Gallery every day.* It’s （78） __________to check the official timetable before you visit the Palace.Hyde ParkAs one of London’s most beautiful landscapes, Hyde Park is the palace for you to walk, play tennis, （79） __________and ride horses. In addition, you can go to a （80） __________that is performed in Hyde Park.