俗话说“酒是陈的香”．白酒的主要成分是乙醇．把酒密封好埋在地下窖藏几年后，其中的乙醇就和白酒中少量的乙酸发生反应．生成一种具有浓郁果香味、名叫乙酸乙酯（CH₃COOC₂H₅）的物质．上述反应速度较慢，因此，窖藏时间越长、乙酸乙酯含量越多酒就越醇香．

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根尖中产生新细胞的部位是（ ）

       Mike works very long hours every day. He usually gets up at 17:00. He has a shower and makes his breakfast. What a funny time to make breakfast! After breakfast he practices his guitar, then he puts on his jacket and goes to work. To get to work, he takes the number17 bus to the Star Hotel. The bus usually leaves at 19:15. He works all night. People love to listen to him! He gets home at 7:00, and he watches the early morning news on TV. He goes to bed at 8:30, a tired but happy man. Can you think what his job is?

阅读下面的材料，根据要求写一篇不少于800字的文章。

    打开自己的抽屉，你会发现一张照片可以将你引向快乐美好的童年；你会发现不经意间岁月给青春的日记铺上了一层灰；你会发现抽屉里的一切虽是那么的平淡，可又那么的神奇。

    请以“打开自己的抽屉”为话题写一篇文章。要求：①自选角度，确定立意，不要脱离材料内容及含意的范围。②自选文体，自拟标题。诗歌除外。③不得套作，不得抄袭。