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How Vitamins Work
Why are vitamins so important?

Every day of your tile, chances are, you think about vitamins. You read about vitamin content on the nutritional label of every food you eat. There are all the TV and radio spots advertising vitamins. You may even take a vitamin pill when you wake up.
  It all begs the question: What, exactly, is a vitamin? A vitamin is a small molecule that your body must have in order to carry out a certain chemical reaction. The human body is known to need at least 13 different vitamin molecules.

Why take vitamin C?
Your body needs vitamin C. It is a very simple molecule containing six carbon atoms, eight hydrogen atoms and six oxygen atoms. Your body needs this molecule for several reasons, but most importantly because of collagen. Since collagen is used in everything from skin to blood vessels, you can see how important vitamin C can be. Without it your blood vessels weaken, your teeth start to fall out, etc., and you eventually fall apart and die. All because of one missing molecule.

Word Bank
molecule(n) 分子
  Scientists say there is a molecale that tells your  brain when your brain arc full!
carry out (v) 执行;完成
  Thc right people need to carry out this projcot or there will be problems.
atom(n) 原子
  Atoms arc the basic building blocks of people, animals and things.
eventually(adv) 最后:终于
  1 will read that book eventually.Five other people are signed up to read it before me.


More Information
nutritiona labeI(n)营养标识
chemical reaction(n)化学反应
collagen (n) 胶原质;腔原蛋白

安卓adb驱动工具包是什么?adb驱动是Android设备(如手机)连接PC时所需要的驱动程序,可用于安卓手机解锁操作,解锁后手机就能够进行刷机啦,非常的实用。google提供,总共包括4个文件,分别为adb.exe,AdbWinApi.dll,AdbWinUsbApi.dll和fastboot.exe,     使用方法如下: 1、下载解压,如放在D:\adb_tools-2.0目录。 2、手机进入fastboot模式: 先将手机关机,然后同时按下音量下键以及开机键,并保持10秒钟以上时间,就可以进入fastboot模式。 3、连接手机和PC机: 使用USB线连接手机和电脑,依次点击开始菜单--运行cmd进入dos系统,进入ADB安装目录,确认手机电脑连接正常,确认方法为在命令行窗口输入fastboot devices,可以看到正常连接的信息,如:9e42530e fastboot。     4、执行解锁命令: 在电脑命令行窗口中输入fastboot oem unlock ****************,*号为16位解锁密码,例如:fastboot oem unlock 1234567812345678。     5、等待手机解锁完成:  输入解锁密码后,手机将自动重启,如果输入密码正确,手机将进入恢复出厂设置模式。恢复出厂设置完成后,手机自动重启,进入待机界面,完成整个解锁操作。 6、查询手机解锁是否成功: 在电脑的命令行窗口中输入fastboot oem get-bootinfo,将显示当前手机bootloader的状态信息,例如“Bootloader Lock State: LOCKED”,表示bootloader仍处于锁定状态。如果显示“Bootloader Lock State: UNLOCKED”,表示手机已经解锁,可以进行刷机操作。
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