Unlike a film, __________  a passive audience watches and hears __________  is happening on the screen, Real Cine puts you into the action and connects with your senses of sight, smell and touch in an active way.

 某物质在空气中充分燃烧，生成了水和二氧化碳，则此物质里一定含有____ 元素。若将此物质隔绝空气加强热，结果生成了水和炭，则原物质里一定含有____ 元素，此反应属于____ 反应。