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, as the so-called "Internet of things" is developing.

    The Internet of things may be coming sooner than you think. In 2015, Samsung CEO spent a lot of time talking about the Internet of things. He said that in the next five years, every Samsung product will be part of the Internet of things, whether it's a vacuum cleaner 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 that 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 recognize people's faces, and even can see when someone passes by and send you a message on your smartphone 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 security systems to the Internet, there may be some problems. For example, many early connected-home devices (装置) don't have much built-in security, which means they could be hacked (被黑客攻击). In addition, it could be difficult to get these devices to work together especially when they are made by different companies. To fight this, many companies have joined the Open Connectivity Foundation, which has more than 300 members now.

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

足球比赛是很多人喜爱的一项体育活动，在比赛过程中蕴含了许多生物学知识，请根据所学知识回答下列问题：
(1)球员听到裁判员的哨声立刻停止踢球，在此反射中，球员听到裁判员的哨声接受声波信息的感受器位于____ 内；听觉产生的部位是____ 。
(2)在球场上，球员传球的过程中，用到了大脑皮层的____ 中枢（写出一个即可）
(3)球场上，球员能准确的协调身体的运动，进行攻防，是____ 在起作用。
(4)在以前的某一场比赛中，有一运动员受伤，左侧手脚不能灵活的运动，这说明此人____ 侧大脑皮层的神经中枢收到了损伤。
(5)球员听到裁判员的哨声立刻停止踢球，此反射属于____ 反射。
（6）当突然进球后，观众兴奋的面红耳赤，这是由于____ 分泌增加的原因。

如果a＞b，那么下列结论一定正确的是（　　）

①发出明亮蓝紫色火焰的是____；

②产生大量白烟的是____；

③不属于化合反应的是____；

④生成黑色固体的是____．

已知直线$\alpha$∥平面$\alpha$，$P\in \alpha$，那么过点P且平行于直线$\alpha$的直线(   )