单选题
Some boys took chemicals like soda and iodoform powder because ______.
【正确答案】
C
【答案解析】soda和iodoform是穷孩子拿的东西,他们took only things of strict commercial interest which could be sold easily in the market.正是因为soda,iodoform power有用处,比较好卖,这些孩子才拿这些东西,因此此题应选C。