题目

       Air pollution, such as haze, has become a serious problem around the world. Besides wearing a mask, what else can we do to protect ourselves from the dirty air?     Scientists have developed a new inhaler (吸入剂) that can reduce the effect air pollution has on people. It could help millions of people who are suffering from air pollution, the Guardian reports.     This inhaler is developed by German company Bitop and contains a molecule (分子) named Ectoine. The molecule creates a layer (涂层) that protects lungs from polluted air. It’s reported that the inh2010年11月22日至25日，温家宝总理应邀正式访问俄罗斯并举行中俄总理第十五次定期会晤。右图是“俄罗斯东西两大经济地区的基本资源指标示意图”，判断下列说法正确的是（）A. 甲地区淡水资源丰富，内河航运发达B. 俄罗斯的人口主要集中在乙地区，是因为乙地区土地资源比甲地区丰富C. 俄罗斯今后工业的发展方向应该向乙地区发展D. 图例中甲代表的是东部地区，乙代表的是西部地区