判断对错

用2个边长1厘米的正方形拼成一个长方形，长方形周长是8厘米．

    Is your TV connected to the Internet? What about your chair, or your fridge? Probably they are not. But in the future, most things in your home may be connected, thanks to the so-called "Internet of things".

    The Internet of things may be coming sooner than you think. Earlier this year, Samsung CEO spent a lot of time talking about the Internet things. He said that three years from now, every Samsung product will be part of the Internet of things, no matter whether it's a remote control or a washing machine.

    So, how do household objects that are part of the Internet of things work? Well, think of a common chair. When connected to the Internet, the chair warms up when it knows the user has just walked into the room and is feeling cold.

    An Internet-connected camera could help people feel safer in their homes. It can know people's faces and has an infrared sensor（红外传感器）, so even if it's dark it can see when someone passes by and send you a message on your smart-phone to let you know who's there. If the person is someone you don't know, it can tell you that, too.

    But according to MIT Technology Review, whether companies are connecting dog food bowls or safety systems to the Internet, there may be some problems. For example, many early connected-home objects don't have much built-in security, which means they could be hacked（攻击）. Moreover, it could be difficult to get these new machines to work together especially when they are made by different companies. To fight this, many companies have joined the Open Interconnect Consortium, which had 45 members by late 2015.

    So, picture this: you enter your home. The temperature changes to make you feel comfortable. Your favorite music starts playing for you. Do you think that this would be a good thing? It may happen sooner than you think.

写出下列句子的意思。

阅读下面文字，完成小题

转身

    一转身，那个动人的身影就不见了。在人海里，想再次打捞到她，再次与她相遇，哪怕匆匆一瞬，都是不可能了，不可能了。

    在广场，在车站，在大街，在超市，在乡野，在人流聚散的地方，我经常有这种感受：转身就是永别。

    那一次，我在北京车站等车。在拥挤的人流里，我不小心踩了右边一个年轻人。我正准备道歉或接受责备，却看见转过来一张文雅谦和的脸，他说：“对不起，我挡着你了。”我深为感动，只顾欣赏这张善良的、有教养的脸，只顾欣赏这江南的表情，却忘了对他说声谢谢，把最诚挚的心情告诉他。当我忽然记起，正要张口表达，人潮猛然涌了过来，一转身，我已找不到他，只看见攒动的人头，波动的各色衣服……

    还记得那年春天，我一人在秦岭深处行走，山路两旁开满鲜花，灯芯花，野草莓花，苜蓿花，蒲公英花……路下面的小河，清澈如镜，温柔如绸，淙淙的水声像母亲轻唤小儿的乳名。四周的群山，一律被松树、柏树、桦树和茂密灌木覆盖。闻着花香，听着水声，看着山色，我恍然已走入了那“拈花微笑”的仙境。正在此时，迎面走来一位小女孩，她头上插了几朵野花，手里拿着一束菖蒲，好看的脸上满是羞涩，浑身洋溢着纯真的自然气息，但我不便过分地注意她，我怕她受到惊吓。于是我停下来，为她让路，然后静静地看她远去，欣赏她的背影，却记不清她的眼睛和脸究竟是什么样子，匆匆一瞥里只得到“好看”的朦胧感觉。我突然感到十分失落和惆怅。我想在记忆里逼真地收藏一个像野花一样纯真的秦岭女孩，这也许是她一生里最生动的瞬间，我记起了泰戈尔的诗句：“我不知道你是多么美丽，你像花一样盲目。”我情不自禁地转过身来，沿着小女孩走去的方向走着。走到山路转弯的地方，出现了一个三岔路口，我已经无法知道小女孩走进了哪一条路径。就那么一转身，她消失在命运的路径，也许就是我此生永远都不能踏上的路径……

    冬天，已经很冷了，西伯利亚寒流远道而来，遭遇袭击的当然是穷人，最可怜的是乞丐。乞丐不多，但不多的乞丐也常常有力地触动和唤醒我们冬眠的良心。在南大街路口，我看见一位贫寒凄苦的中年乞丐，我急忙赶回家，拿上我去年穿过的那件防寒服找他。可是来到南大街，已不见了他，于是我在东大街找他，又在北大街找他，都没有找到。最后我来到丁字街，还是没有找到他，却遇到了一个老年乞丐。一转身，苦难交换了方向，交换了背影。于是我把防寒服披在这位贫苦老人的身上，希望他下降的体温稍稍回升，希望降温的人性稍稍回升。我由此想到，亚洲的穷人，非洲的穷人，全世界的穷人，想到徘徊在文明大街上的那些孤苦身影，一转身，他们到哪里去了？

    一转身，车窗外的河流已经不知去向；一转身，门前的那只鸟已不见踪影；一转身，天上的那座虹桥已经悄然消失；一转身，水里的鱼已经没入深渊；一转身，父亲已经走远，新垒的坟上，墓草青青……

    旭日一转身变成落日，青丝一转身变成白发……等一等，等一等，能否再转回来？

（选自《散文》2008年第1期）