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为了使AX和BX寄存器中的两个16位二进制数具有相同的符号位，下面的程序段中应填写什么指令？ PUSH
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听力原文：M: Can I help you, madam？
W: Yes. I bought a mobile phone from your store. But it doesn't work properly.
Q: What is the woman doing at the store？
(5)
Task 2
Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.
Welcome to our small business set-up guide, providing all the information you need to start your business on a healthy, solid basis.
From choosing the right name for your company and making your first business plan, through to up-to-date taxation (税务) advice, banking and insurance tips, each subject is discussed in the guide.
We also look at the vital characteristics you'll need to survive in business. Determination and originality (原创性) are key. Equally, so is the ability to organize your time and to put in the required effort during the early days.
As with any new business, success can never be guaranteed, but our aim is to reduce the difficulties involved in setting up a business on your own. We'll forewarn you of the most common problems, including failure to research your market in sufficient detail and not setting aside enough funds for thougher financial times.
Starting up even the smallest business can be challenging. But take comfort in the fact that you are not alone. In fact, of the four million businesses currently in operation in the UK, more than 99.3% are classified as "small," with fewer than 50 employees.
In order to keep this guide as brief as possible, where we've not had enough room to include every detail, you'll find a link taking you to the most relevant (相关的) articles.
Good luck with your business idea!
This guide is intended to help people to________.
听力原文：W: Excuse me, Mr. Black.
M: Yes？ Is there anything wrong？
W: Could you change your appointment with me this afternoon？
M: What's the problem？ W: I'll have to visit an important client this afternoon. It's urgent.
M: Then perhaps we can meet tomorrow.
W: What time exactly？
M: How about tomorrow afternoon at 2 o'clock in my office？
W: Can we meet an hour later, al 3 o'clock？
M: OK. See you then.
QUESTIONS:
What's the problem with the woman？
What will the woman do this afternoon？
What time do the two persons finally agree on the meet each other？
(8)
It was because of his good performance at the interview______ he got the job with the big
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