下列生活中的现象与氧化还原反应知识有关的是（    ）

阅读下面文章，完成小题。
                                                                                                                                           瑕之美
                                                                                                                                           郭启宏
        ①徜徉于芳林之中，采红撷绿，每见枯枝败叶，却无触目萧索之感，反觉新陈代谢，生机盎然。文艺创作中也有类似情形。作品中的人物形象往往因作家恰到好处地写出其外形和内心的某种“缺陷”，而别具魅力。
        ②《水浒传》里，黑旋风李逵憨直忠勇，却又鲁莽得可爱；拼命三郎石秀是一个精细人，狠劲上来，其尖利歹毒，叫人刻骨铭心。《红楼梦》中，聪明、活泼的史湘云偏是个“咬舌子”，把“二”说成“爱”；还有林黛玉的“小心眼”，晴雯的“使性子”……一个个人物无不跃然纸上，呼之欲出。古往今来，大凡成功的艺术形象，恰恰由于若隐若现的微瑕，而显出璞玉浑金的天然光彩。这就是美学家所称的“缺陷美”。
        ③我想，“缺陷”之所以为美，在于它的真实。谚云：“金无足赤，人无完人。”《水浒传》《红楼梦》的例子，正是作家基于真实的艺术的生命这一着眼点，才在“完美”的面庞上点出“缺陷”的痦子。即使作家主观上有某种“神化”的理念，只要他尚能依据生活进行创作，最终仍不得不归于“人化”的描写。《三国演义》中作为智慧化身的诸葛亮，作家在绝对化的描写中，也还有着被姜维识破计谋的千虑一失以及在先帝托孤时刻的惶恐心理等笔墨。“缺陷”愈真实可信，就愈有生命力，于是就愈美，“美是生活!”
        ④“缺陷”之成为美，还在于它的独特和恰如其分。外形的“缺陷”是千人千般，万人万种的。美人长有痦子，或者浮现在嘴角，或者隐匿于颈后，绝不相同；内心的“缺陷”更有千差万别，任何分类精密的批评家也无法归纳出几条几款，让人对号入座。这是“缺陷”的独特。所谓“恰如其分”，指的是“缺陷”不过是缺陷而已，既非外形的丑态，也非内心的恶德。这样，“缺陷”便在真实的基础上产生了特殊的韵致，使人物又各具风采，艺术魅力由此而生。正如捧心西施独特的却又风情十足的“缺陷”竟使东施起而“效颦”一样，憨湘云醉眠芍药茵，呆香菱情解石榴裙，都是她们各自独特的“不检点”的行为，相信《红楼梦》的读者不会据此认为这样的艺术形象是丑陋的。
        ⑤或问，难道只要“缺陷”都是美，无缺陷的“完好”不是美吗？无缺陷的“美好”当然是美，我们能说镜中花、水中月不美吗？然而这种美却难以捉摸得到。从文艺创作来说，塑造美的人物形象，并不排斥对其“缺陷”的描写。这里，还须再次说明，笔者所称的“缺陷”是有条件的，即：“缺陷”只是局部，而非整体。整体的美不但可以容纳而且必须包容局部的“缺陷”，“爱屋及乌”的成语和“情人眼里出西施”的俗语说的就是这个道理。
        ⑥一言以蔽之，瑕不掩瑜^① ， 瑕之美，在于真实与韵致。
                                                                                                                                                                                                                         （本文略有改动）
      【注释】①瑕不掩瑜：瑕，斑点；瑜，玉上的光泽。玉的疵点掩盖不了其固有的光泽。比喻事物的毛病缺点无损其整体的完美。

皮肤是保护人体的第一道防线，与皮肤保护功能有关的组织是（  ）

Directions: After reading the passages below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form. of the given word; for the other blanks, use one word that best fits each blank.

Ask helpful Hannah

Dear helpful Hannah,

I’ve got a problem with my husband, Sam. He bought a smart phone a couple of months ago and he took it on our recent ski vacation to Colorado, it was a great trip except for one problem. He has a constant urge____  for next messages; he checks his phone every five minutes! He’s so addicted to it that he just can’t stand the idea ____   there may be an important text. He can’t help checking even at inappropriate times like when we are eating in a restaurant and I am talking to him! He behaves____  any small amount of boredom can make him feel the need to check his phone even when he know he shouldn’t. The temptation to see ____  is connecting him is just too great. When I ask him to put down the phone and stop ____  (ignore) me, he say, “In a minute.” but still checks to see if____        has posted something new on the Internet. Our life ____ (interrupted). If we go somewhere and I ask him to have the phone at home, he suffers from withdrawal symptom. May this dependency on his smart phone has become more than an everyday problem.

   I recently read an article about “nomophobia,”____  is a real illness people can’t suffer from the fear of being without your phone! I am worried that Sam maybe suffering from this illness because he feels anxious if he doesn’t have his phone with him, even for a short time.

  Who would have thought that little devices like these could have brought so much trouble!                                                                                                                                     

Sick and Tired Sadie

在反比例函数$y=\frac{3-2m}{x}$的图象的每一条曲线上，y都随着x的增大而增大，则m的值可以是（     ）