探究金属性质时,将锌粒放入硫酸铜溶液中,锌粒表面有紫红色物质析出,还有无色无味气体产生的“异常”现象。推测该气体可能是 A.氢气 B.二氧化硫 C.二氧化碳 D.一氧化碳 答案:A17.From the information below,we know that _______.( )A.Ben only wants to live in a hotel of his own countryB.Joe feels lonely nowC.Elisa doesn't want a pet now