题目

 You can take a selfie（自拍） with a hand-held digital camera or mobile phone and later share it on the Internet.   36    According to a recent survey, half of the interviewees admitted to taking a selfie while on holiday. Love them or hate them, selfies show no sign of stopping.  After all, the selfie is the most important way to show off on holiday.   37    How can you take the best holiday selfies? Here are some useful posing tips for you. ◆‘Food chew’style Want to let everyone know how exciting your holiday food choices are? Hold up some food on your fork 空气中含量较多且化学性质不活泼的气体是A.氮气 B.氧气 C.稀有气体 D.二氧化碳