根据“求同存异”、“小球转动大球”、“伙伴关系”等内容提炼出一个最恰当的学习主题是（    ）

    If you’re secretly worried about your smart phone addiction, then the new NoPhone might be just the thing you need. It looks and feels exactly like a smart phone, but it does nothing. It’s just a piece of plastic that you can carry around in your hand to fool yourself.

    Dutch designer Ingmar Larsen came up with the idea as a joke along with his two friends. To their great surprise, the idea received a lot of attention online and people from all over the world started placing requests for NoPhones of their own. So that’s when the three friends decided to turn to collecting enough fund for mass production.

    NoPhone is currently a prototype (模型) that will cost only $12 once it hits the market It is 5.5 inches high, 2.6 inches wide and 0.29 inches thick, bringing it quite close to the latest smart phones on the market. It is described as “battery free”, “no upgrades necessary,” “shatter-proof (抗震)”, “waterproof” and “an alternative to constant hand-to-phone contact that allows you to stay connected with the real world.”

     “Phone addiction is everywhere,” the designers insist. “It’s ruining your dates. It’s distracting you at concerts. It’s blocking sidewalks. Now, there is a real solution. With a thin, light and completely wireless design, the NoPhone acts as a substitute to any smart mobile device, enabling you to always have a phone to hold without giving up potential engagement with your direct environment.”

    If you’re interested in NoPhone, but concerned about not being able to take selfies (自拍) anymore. Don’t feel upset. The makers do have an upgrade at no extra charge---the mirror sticker. That way, they say, you can enjoy “real-time” selfies with your friends when they’re standing right behind you.

生命

    血色黄昏，硝烟滚滚。

    日军56师团长驱直入，已彻底切断滇缅国际通道，进占怒江西岸，在惠通桥沿岸同中国军队接火，中日双方几十万部队摆开了决战架势。

    怒江不保。昆明危在旦夕。

    整个大后方已感触到战争的迫近。

    距惠通桥不到50公里的泥泞公路上，开来5辆重型卡车。第一辆车上，坐着一个穿着少校制服的大胡子。两小时前，他接到集团军总部的命令：不惜一切代价，将弹药及食品送上惠通桥南高她。这里，国军耿振华师已到了弹尽粮绝的地步，一个师打到不到一个团的兵力了，全体官兵已有4天没进过一口食物，士兵们连枪都端不起来了，而他们接到的命令是必须再坚守24小时，不惜一兵一卒。

    惠通桥不保，怒江防线必毁于一旦，后果将不堪设想。

    卡车在公路上疯狂地弹跳着向前冲去。大胡子少校手提一挺轻机枪，两眼血红。作为带队长官，他明白迟到一个小时的后果是什么。

    不该发生的事发生了，第一辆卡车扎进炮弹坑里，熄火了。随后的4辆卡车也被迫停下来。前面的路面都布满炮弹坑。押车官兵全部下了车，奔跑着搬石头填炮弹坑，推车，累得气喘吁吁。也就是在这个时候，四野里聚集来不少饿得皮包骨头的饥民，怯生生地围着卡车转，也不知是谁喊了一声：车里有白馍！顿时，四野里的饥民打了强心针般振奋起来，呼啦啦冲上去钻进车厢，抢吃起馒头来！

    大胡子少校手提轻机枪冲到被抢的车前，嘴角抽搐着，两眼滴血，一咬牙将枪端起来对准饥民，只听一片哗啦啦的枪栓声，全体押车官兵持枪围住了饥民。就在这时，大胡子少校的双眼直直盯着车尾，然后痛苦地闭上了双眼。在车尾，一个十二三岁的小女孩，饿得双眼深陷，浑身瘦骨骇人地撑着肉皮，一双脏兮兮的手抓住馒头，嘴里还咬着一只馒头，遮住了半张瘦脸，双眼惊骇而哀怜地望着大胡子少校。大胡子少校浑身战栗着，两幅画面在眼前交替晃过：一边，是饿着肚子同鬼子拼命的国军兄弟；一边，是手无寸铁饿得只剩一口气的小女孩！他丢下机枪，面对饥民跪了下去，一拳砸在头上：  “乡亲们哪，前面守怒江的弟兄们已经4天没有吃饭了，他们空着肚子在和鬼子拼刺刀啊！你们……”

    四野霎时一片寂静：所有人如石雕一般。

    小女孩怯生生地挪到大胡子少校面前，将手里的馒头递到大胡子少校手上，然后取下嘴里的馒头也递上去：“叔叔，我不知道这些馍馍是送到前线去的，这个馍馍我咬了一口，请他们别嫌弃，请他们吃饱了多杀鬼子……好吗？”

    大胡子一下抱起小女孩，只一个劲点头。他将脸贴着小女孩的脸：“你叫什么名字？”小女孩有气无力地答道：“我叫尤小翠。”大胡子颤声说道：“好妹妹，等我们打败了鬼子，我一定要让你吃上白馍。一定让你吃饱好吗？”小女孩吃力地点点头，脸上露出稚气的笑。所有的饥民们此时都将拿在手里的馒头默默地送曰了车上。然后用最后一点力气抱起一块块填弹坑的石头……。

    车队终于怒吼着向怒江方向冲去……。

    一周后，大胡子少校和耿振华师长来到陷车的地方，大胡子少校手里提着一小袋馒头，耿师长手里也有一个馒头，一个发黄的有一个缺口的白馍。他们找一个叫尤小翠的小女孩。一个老大娘将他们引到一座新的小坟包面前，老大娘说：“她家7口人，她是最后一个死去的，她在3天前饿死了！”大胡子少校和耿师长咚地跪在新坟前。

    凄厉的枪声伴着一声嚎叫：“小翠妹，所有的中国军人会为你报仇！——小日本，中国人是不会死绝的！”

    34年后，一位国军起义临军临终前拿出一个有缺口且发黄的馒头。说：“把这馒头的故事……讲给……小青年们……听。”