● A group of related fields is called a （75) . （75）A. data B. file C. record D. database

A group of related fields is called a(75).

A．data

B．file

C．record

D．database

A.data

B.file

C.recor

D.database

B．giving a 25-minute presentation to the tutorial group;

C．writing a paper and giving it to the lecturer;

D．finishing an essay on a freely-chosen topic;

E．having an open-book examination.

A. To simplify the process of creating new users using the CREATE USER xxx IDENTIFIED by yyy statement.

B. To grant a group of related privileges to a user.

C. When the number of people using the database is very high.

D. To simplify the process of granting and revoking privileges.

E. To simplify profile maintenance for a user who is constantly traveling.

The possible research of family trees is based on the fact that______.

A．genetics has achieved a breakthrough

B．genetic information contained in DNA can be revealed now

C．each individual carries a unique record of who he is and how he is related to others

D．we can use DNA to prove how distant an individual is to a family, a group or a population

A Individual productivity

B Cost effectiveness

C Group or team productivity

D Rating system developed by the project manager

E All of the above

Which of the following about the controlling idea is not true？

A.It is always the first sentence.

B.A paragraph is a sentence or group of sentences that support one main idea. That’s what we call the “controlling idea” because it controls what happens in the rest of the paragraph.

C.The information in each paragraph must be related to that idea.

D.It is about the most important idea that you are trying to convey to your reader in a paragraph.