读“非洲气候类型空白图”，回答下列问题：
People______better access to health care than they used to,and they're living longer as result.
A﹣H是初中化学常见的物质，其相互转化关系如图所示，其中A是人体胃液中帮助消化的物质，B是用于改良酸性土壤的碱．
把线段AF平均分成分成5份．
AB占AF的____．
CD占AF的____．
CE占CF的____．
CF占AF的____．
探究题
