【判断题】在国外景区不能随便扔垃圾,在国内无所谓。
【单选题】After a 300 million yuan renovation project, Lidai Diwang Miao, or the Imperial Temple of Emperors of Successive Dynasties, was reopened to the public last weekend. Originally constructed about 470 ye...
【单选题】氧气瓶一定要防止与( )接触,并绝对避免让其它可燃性气体混入,禁止用盛装其它可燃性气体的气瓶来充灌氧气。
【判断题】It was in 1929 after consultation with customers that the ethical policy was introduced.