[单项选择]The so-called "virtual reality "mentioned in this passage is actually.A. a surgical tool used for operationsB. a computer system used to produce life- like illusionsC. a new kind of applications in a visual technology.D a way to carry out operations in a visual sense

[填空题]The so called "virtual reality" mentioned in the second sentence of the passage is actually ______.

[简答题]Artificial intelligence and virtual reality are two computer-related technologies that may cast a large shadow on education. Much of school planning may be done not by human agents but by programs created by human agents; and much of what was once accomplished by textbooks and occasional field trips will now be performed in virtual reality. One can ask: what is the truth value of materials prepared entirely by non-human entities In a turnabout from previous trends, the acquisition of credentials may become less important. Individuals will be able to educate themselves (largely if not wholly) and to exhibit their mastery in a simulated setting. Why pay $120, 000 to go to law school, if one can "read law" as in earlier times and then demonstrate one’s legal skills via computer simulation Or learn to fly a plane by similar means, for that matter Technology has revolutionized the world in which schools operate. Now it’s time for education to catch up to change.

[单项选择]What is the chief advantage of the virtual reality techniques when used in microsurgery
A. The medical students and surgeons can use it to practise simulated surgical operations as if operating on a real patient.
B. Medical students and surgeons can do any operations without considering their consequences.
C. It helps to do operations on human eyes extremely accurately.
D. It allows surgeons and their students to set their imagination free.

[单项选择]A virtual memory system has five virtual pages numbered zero through four and three page frames. All the page frames are initially empty. How many page faults are generated with the following access sequence using a FIFO replacement policy ( ) 0 1 2 3 0 1 4 0 1 2 3 4
A. 8
B. 9
C. 10
D. 7

[单项选择]
What time frame is mentioned
A. (A) All of August.
B. (B) The first week of August.
C. (C) The middle of August.
D. (D) The last two weeks of August.

[单项选择]How many bathrooms are mentioned
A. Four
B. Three
C. Two
D. One

[单项选择]What is mentioned about the sale
A. It is only for a limited time.
B. It is to get rid of old stock.
C. It is an annual event at the store.
D. It is a grand opening celebration.

[单项选择]What is mentioned about the item
A. It is out of stock.
B. It is at another store.
C. It has been discontinued.
D. It has just arrived.

[单项选择]What is mentioned about the bike
A. It features a modern design.
B. It is reasonably priced.
C. It has multiple gears.
D. It has a large carrying capacity.

[单项选择]What is mentioned about the amenities
A. They are spacious.
B. They are modern.
C. They are attractive.
D. They are affordable.

[单项选择]What is mentioned about the laptop
A. Its case has a crack in it.
B. It was damaged during delivery.
C. Its screen is not wide enough.
D. It was damaged inside the box.

[单项选择]What is mentioned about the strawberries
A. They are excellent for use in desserts.
B. They are grown at a local farm.
C. They are being sold for two dollars off.
D. They are the most expensive produce.

[单项选择]What is mentioned about the product
A. Its flavor is not overpowering.
B. It contains moderate levels of fats.
C. It is most useful for baking.
D. Its taste is similar to that of olives.

[填空题]