人最宝贵的东西是生命。生命对人来说只有一次。因此，人的一生应当这样度过：当他回首往事的时候，他不因虚度年华而悔恨，也不因碌碌无为而羞愧，这样，在临死的时候，他能够说：“我把整个生命和全部精力都已献给了人生最宝贵的事业——为人类的解放而奋斗。”

这段文字出自《____》，主人公是____。从整部作品看，主人公是个怎样的人____？

为了吸引外资，发展中国家改善投资环境，目的主要是为了（　）

已知两个非零向量 $\overrightarrow{a}$ ， $\overrightarrow{b}$ 满足| $\overrightarrow{a}$ + $\overrightarrow{b}$ |=| $\overrightarrow{a}$ ﹣ $\overrightarrow{b}$ |，则下面结论正确的是（   ）

阅读下列短文，从所给的四个选项中，选出最佳选项。

    Borrowing to start a business is not easy. Getting a bank loan, particularly for a new small business, is like going through the eye of a needle.

    Banks favor established-business people with a solid credit rating and a large bank account. They should also have experience in the business they propose to enter, and offer well-prepared business plans that show the ability to repay the loans. If you are not such a person, then you need to double your preparations to convince the banker to lend you that much needed start-up capital（资金）. If your business is new and small, bankers will need to know as much as possible about you and your business. However, many small business owners often make the mistake of not being well prepared when going to the bank to apply for the loan. Surprisingly, many loan applicants don't even have the slightest idea how or when they intend to repay the money they request. Often they don't even know how much money they need. When asked how much money they want to borrow, many people give these two common responses: “How much money can I get?” and “As much as possible.” Is it any wonder that lenders say no? So the most important thing is do your homework before you ask for a loan.