题目

Moscow Sheremetyevo International AirportIf You’ve Lost Personal Belongings●On Board —Contact the airline’s representatives●At the Airport —Contact:—Sheremetyevo Police Department ……+7(495)578-22-55—Unclaimed luggage storage room in Terminal C ……+7(495)578-23-26—Unclaimed luggage storage room in Terminal D……+7(499)500-65-52(domestic flights)……+7(495)753-86-41(international flights)When collecting Lost and Found items, you shall have an identification document, a boarding pass or a ticket, and also indicate the place where the items were lost and prove they are下列变化中，前者属于物理变化，后者属于化学变化的是（　　） A、空气液化，矿石粉碎B、碘升华，红磷燃烧C、实验室制氧气，铁生锈D、冰融化成水，工业制氧气