Workers lay flowers during preparations for the seven-day May Day holidays on the Ningyuan Square in Yinchuan, capital city of northwest China's Ningxia Hui Autonomous Region, April 29, 2006. Preparations are underway across China as the May Day holidays come closer. [Xinhua Photo]

Workers lay flowers during preparations for the seven-day May Day holidays on the Ningyuan Square in Yinchuan, capital city of northwest China's Ningxia Hui Autonomous Region, April 29, 2006.  [Xinhua Photo]

A stewardess arranges toys and books in the area designed for infant passengers on a train from Nanjing to Hangzhou in east China April 29, 2006. [Xinhua Photo]

Stewardesses prepare blankets for passengers on a train from Nanjing to Hangzhou in east China, April 29, 2006.  [Xinhua Photo]

A waitress arranges bed at the Xiongbala Grand Hotel in Lhasa, capital of southwest China's Tibet Autonomous Region, April 29, 2006. [Xinhua Photo]

A waitress fastens a piece of hadaa, a ceremonial silk scarf as a token of respect, on a vessel wishing for good harvests at the Xiongbala Grand Hotel in Lhasa, capital of southwest China's Tibet Autonomous Region, April 29, 2006. [Xinhua Photo]