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计算机内部信息的表示及存储往往采用二进制形式，采用这种形式的最主要原因是什么？

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根据下面材料，回答题。
Mind Those Manners on the Subway
So, there you are, just sitting there in the subway car, enjoying that book you just bought.
46 Or, the person sitting next to you takes out a nail clipper (指甲刀) and begins cutting his or her nails.
Annoying？ Many of us have to spend some time every day on public transportation.47 So, to make the trip more pleasant, we suggest the following:
Let passengers get off the bus or subway car before you can get on.48
Stand away from the doors when they are closing.
Don&39;t talk loudly on a bus or subway. Chatting loudly with your friends can be annoying to others.49
Don&39;t think your bags and suitcases (手提箱) deserve a seat of their own.
Use a tissue whenever you cough or sneeze (打喷嚏). An uncovered sneeze can spread germs(细菌), especially in crowded places.
Don&39;t cut your nails or pick your nose on public transportation.
Don&39;t read over other people&39;s shoulder.50 It can make people uncomfortable. They might think you&39;re too stingy (小气的) even to buy a newspaper. Or they might think you&39;re judging their behavior.
第46题______ 查看材料

A. Don"t eat food in your car.
B. Don"t shout into your mobile phone on a bus or subway.
C. We all know that some behaviors are simply unacceptable.
D. Many people do this on subways， but it"s really annoying.
E. Getting off and on in an orderly manner can save time for all.
F. Suddenly， you feel someone leaning over your shoulder reading along with you.

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竹林七贤是正始中期以后形成的林下谈玄的名士文人群体。他们发言玄远，任性放达，饮酒服药，表现出超凡脱俗的人生趣味，以及对一种自由自在、闲适愉悦、心与道冥的理想人生的追求。七贤的政治立场和处世方式各有不同，其中，文学成就最高者是()和()
A阮咸、向秀
B王粲、山涛
C王戎、刘伶
D嵇康、阮籍

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上述特效药的作用机制是()。

A. 与组胺受体结合
B. 阻断过敏反应
C. 还原作用
D. 生成高铁血红蛋白后再生成硫氰化物
E. 生物转化作用

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____________ 查看材料

A. rate
B. motion
C. system
D. disease

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