Welcome to Beijing．You can take the No.82 bus to the Tian'anmen Square or you can go by subway.The Tian'anmen Square is on the West Chang'an Street．It's near Zhongshan Park．Go straight, you can see the Palace Museum on the right．After going around the Palace Museum, you can turn left．And you will see Beihai Park．

◆Opening time of Palace Museum：April 1st—Oct.31st Friday      8:30 a.m.—5:00 p.m.

Nov．1st—Mar. 31st        9:00 a.m.—5:30 p.m.

◆Tickets(门票)of Palace Museum：April 1st—Oct.31st      Adult：￥60

Nov.1st—Mar.31st      Adult：￥40

youth ages 6-18 years old：Half Price

children 6 years old or younger：￥0

children under 1.2 meters：￥0

◆You can also watch animal show in the Palace Museum．You can also enjoy Gourmet Festival．There are many delicious food and drinks．The fruits are big and juicy．The sea food is fresh and various．The meat is roast．You can eat and drink．

科学考察工作者为了测海底某处的深度，向海底垂直发射超声波，经过4s收到回波信号，则测得该处海水深____ m （声音在海水中的传播速度为1500m/s）．这种方法____（选填“能”或“不能”）用来测量地球和月球之间的距离．