[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.

[填空题]What is the chief advantage of the virtual reality techniques when used in microsurgery

[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.

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

[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

[单项选择]What is the chief advantage of having the engage- ment period（）
A. The two people can learn about each other’s likes and dislikes.
B. The two people can have time to decide if they are a good match.
C. The two people can have time to shop for their new home.
D. The two people can earn enough money for their wedding.

[简答题]What is the advantage of questionnaires

[填空题]What is Chief Accountant satisfied with
He is satisfied that ______.

[填空题]What is the advantage claimed for repeating fairy tales to young children

[单项选择]What’s the chief duty of every government
A. To protect persons and property.
B. To collect taxes.
C. To teach and train citizens.
D. To save natural resources for future use.

[简答题] What Dictionaries Are For One of the chief supports of any language ’’researcher’’ is the dictionary. Many students understand this and, as a result, buy themselves bilingual dictionaries or electronic translators because they hope that they will find an instantly usable translation of a word they know in their language. Many bilingual dictionaries fail to give sufficient information about grammatical context, appropriacy, and connotation. This does not mean that all bilingual dictionaries are bad or that students should never use them. There are some excellent examples available now and whether we like it or not, students will always use them, especially at lower levels. Monolingual dictionary (MLD) What we can do is show them something different which is just as good — and in many ways better: the monolingual dictionary (MLD). MLDs, whether in book form, on CD or available on the Internet, are those written in only one language (in this cas