题目内容

The paragraph below has been taken from the text but includes ten blanks. You are required to select one word for each blank from a list of words in the word bank provided. You may not use any of the words in the word bank more than once.Why, in this modern society, do paraplegics still have to (1) ______ each trip to the corner shop as if it was a (2) ______ military operation? Why is it that it is still not possible for people like myself to get onto a bus or a train without the (3) ______ of at least two strong friends? This is made even more of a (4) ______ when taxi drivers who see a person in a wheelchair (5) ______ past and pretend not to see me. Why do so many shops not have doors or elevators that somebody in a wheelchair can use? Why do so many cinemas, restaurants, theatres, sports stadiums, etc. still not provide (6) ______ where a wheelchair can be placed so aparaplegic can (7) ______ the same (8) ______ and rights as other (9) ______ of society? Why do we still have kerbs at the edges of roads that make it almost (10) ______ for a wheelchair to cross the road?

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简单阐述HDFS采用抽象的块概念可以带来以下几个明显的好处。

HDFS结构设计的局限性有哪些?

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