Researchers monitor activity of rare white panda

①Domestic large plane C919 receives more than 1,000 orders ②Chang'e-5 lunar samples to open new chapter in HK's lunar scientific research ③Researchers monitor activity of rare white panda ④China to establish global mangrove center in Shenzhen ⑤More than 1,000 bamboo slips on display in Chinese museum ⑥World's first mountaintop impact crater found in NE China ⑦China's Baotu Spring flows for record 20 years