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¡¾ÌâÄ¿¡¿The idea of giving blood is very simple, but that idea has saved many thousands of lives over the past century.
Doctors have been carrying out blood transfusions for hundreds of years. ¡¾1¡¿.Æð³õ£¬ËûÃÇ´ÓÃàÑòÉíÉϳéѪ. But that wasn¡¯t very successful. It wasn¡¯t until last century that doctors realized there are several types of blood. ¡¾2¡¿. and that the correct type must always be used. Once they knew that, blood transfusions had become almost 100% successful.
So, you might be thinking, what does this have to do with me? Well, ¡¾3¡¿.ËüÓëÎÒÃÇ´ó¼Ò¶¼ÓйØϵ. Hospitals need to keep banks of blood ready for transfusions. The only way they can get that blood is from ordinary people like you. ¡¾4¡¿. Every human body has about¡¾5¡¿liters of blood, and we take 0.5 liters from each person. This is completely safe. In fact. ¡¾6¡¿. your body will make enough blood to replace it in a day. It costs you nothing, and it could save a life. So please give blood.
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¡¾ÌâÄ¿¡¿Jack is a clerk of a bookstore. Here is the note from his boss. Ben. Jack has to decide what books to order according to the following note and the descriptions of the books.
Hi Jack,
You must hand in the order list of books to me by the first working day of every month. The rules for choosing books are:
For textbooks:
August in coming. We must choose all textbooks, without thinking of other rules.
For books which are not textbooks:
If more than five copies of books were sold last month, choose them. But if there are five copies or more in stock (ÏÖ»õ) we do not make an order.
If the wholesale(Åú·¢) prices of the books are higher than $ 75, we do not choose them. And we do not order anything whose retail(ÁãÊÛ) price is higher than $ 100.
Ben
The descriptions of the books
Title: Homeland English Publisher(³ö°æÉç): Homeland Ltd Wholesale prices: $ 110 Retail price: $ 140 Textbook: Yes Copies sold last month: 3 Copies in stock: 2 | Title: How to Become Successful Publisher: Founder Company Ltd Wholesale price: $ 25 Retail price: $ 40 Textbook: No Copies sold last month: 2 Copies in stock: 1 |
Title: Biology at a Glance Publisher: New Times Publishing Ltd Wholesale prices: $ 70 Retail price: $ 95 Textbook: No Copies sold last month: 18 Copies in stock: 3 | Title: Good Health in 20 Days Publisher: Oscar World Ltd Wholesale prices: $ 50 Retail price: $ 66 Textbook: No Copies sold last month: 10 Copies in stock: 20 |
¡¾1¡¿Jack must hand in the order list to his boss by ________.
A. the first day of last August
B. the last working day of this month
C. the last day of next August
D. the first working day of each month
¡¾2¡¿If Jack wants to buy the books about success he should order them from ________.
A. Homeland Ltd B. Founders Company Ltd
C. Oscar World Ltd D. New Times Publishing Ltd
¡¾3¡¿Which book sold best according to the text?
A. Homeland English B. How to Become Successful
C. Biology at a Glance D. Good Health in 20 Days
¡¾4¡¿Jack can¡¯t buy Good Health in 20 Days because ________.
A. it is not a school textbook
B. the copies in stock are more than five
C. its wholesale price is too high
D. the copies sold last month are over five