下列关于生态系统稳态的叙述，正确的是                               

不使用一次性餐具也是一种健康的饮食习惯。

PPI 即生产者物价指数，是衡量工业企业产品出厂价格变动趋势和变动程度的指数，是反映某一时期生产领域价格变动情况的重要经济指标。面对PPI指数的下降，政府采取的有效措施是                                               
①适当增加财政的支出      ②适当下调生产企业的税率    
③适当减少财政的支出       ④严格控制企业产品出口数量

选词填空。

different，call，writer,say,trouble，make，shout，place，between，successful

    Yesterday l went to the cinema with my classmate．The movie is____The Patriot．It describes the love____a father and his children during the time of the American War of Independence (美国独立战争)．It's a war story,but he____created it for fun．

    The movie is not bad．Sometimes it____us laugh，and sometimes it made us cry．It was a very____movie．

    The most interesting thing was the cinema itself．It was____from other cinemas．In America，a cinema is a____for everyone to enjoy in common．People laugh loudly when an actor tells a joke．When the hero of the story is in____，people get worried．Many of them can't help____．In this cinema when I couldn't help laughing，a man beside me said．"Could you please be quiet?"No one has____this to me before．You can imagine how surprised I was at that time．

科学研究表明：绿原酸具有抗菌、抗病毒、增高白血球、保肝利胆、抗肿瘤、降血脂、清除自由基和兴奋中枢神经系统等作用，被誉为“第七营养素”， 它可以从忍冬科植物中提取，化学式为C₁₆H₁₈O₉。由此可知，绿原酸由____种元素组成；一个绿原酸分子由____个原子构成；绿原酸中H、O元素的质量比是____。