★Boryeong Mud Festival--Boryeong, South Korea
For two weeks in July, millions gather in Boryeong to experience the grey pools and slides. What began as a way of promoting the region’s mineral-rich mud has turned into a festive party , complete with music and fireworks. While the mud is usually only available in cosmetic products, here you can cake yourself in grey as you want.
★Holi--lndia
Holi, the Festival of Colors, is a Hindu celebration full of joy and one of India’s most important holidays. During the day of the last full moon of the lunar month, usually late February or early March, the air is full of bright colored powder. The festival is celebrated differently throughout the country, but the cheerful spirit is common throughout Hindu communities around the world.
★Koninginnedag--The Netherlands
Although their current Queen’s birthday is really during the winter, the Queen still celebrates it on April 30th,the country’s official “Queen’s Day” since 1949. Orange is the national color, and the streets become a sea of feather boas（长围巾）and body paint as crowds gather in the plazas（广场）. Amsterdam is the center of this outdoor party, with many live music acts, but nearly every town is alive with orange on this day.
★National Elephant Day in Thailand
In Thailand, March 13 is regarded as National Elephant Day to show that the Thai elephant plays an important role in the Thai history. Thai Elephant Day has been held on an annual basis since the idea was first approved by the Thai government in 1998. Special events are held at a number of venues in northern Thailand. At the Mae Sa Elephant Camp, it has become a tradition on March 13 for the dozens of elephants there to be treated to a huge feast of fruits and sugarcane.
小题1:What we can learn from the passage is that ________.
A．Boryeong Mud Festival was originally held to advertise for their mineral resources
B．people around the world celebrate Holi differently to promote their religions
C．Koninginnedag--The Netherlands was celebrated on their current Queen’s birthday
D．it is an international custom for the Thai elephant to eat all kinds of fruits and sugarcane小题2:What is the purpose of the festival held on March 13 in Thailand?
A．To call on people to protect these endangered elephants.
B．To give the Thai elephant a chance to eat fruits and sugarcane.
C．To stress the importance of the elephant in the Thai history.
D．To help people relax themselves by feeding the Thai elephant.小题3:You can experience the Festival of Colors in _______.
A．South Korea
B．Thailand
C．the Netherlands
D．India小题4:What is the main purpose of the text?
A．To tell people how to enjoy and relax themselves.
B．To introduce some unique festivals around the world.
C．To get people to celebrate different kinds of customs.
D．To show the importance of celebrating different festivals.
的不饱和度均为1，现有结构简式为
的物质，通过碳、氢原子数和不饱和度的计算，确定下列物质中不是上述物质的同分异构体的是 [ ]
