The main idea of the first paragraph is _____.

［A］ the importance of cultural tools and technology

［B］ the cultural influence of the development of civilization

［C］ the focus of the study of the material culture of music

［D］ the significance of the research into the musical instruments

[单选题]The main idea of paragraph 2 is______.A． colors may have effect on our work and studyB． colors do have effect on our moods (情绪)C． light and bright colors make people happyD． factory workers can work better in a bright room

[单选题]The main idea of Paragraph Four shows us ______.A． some examples of shoot in US schoolsB． the American's feelingC． some famous schoolsD． that some teachers were killed by students

[单选题]The main idea of paragraph 4 shows us______.A． some examples of shooting in the US schools.B． the American's feeling.C． some famous schools.D． that some teachers were killed by students.

[单选题]In the first paragraph, individual borrowing is cited because_____.[A] it shares similarities with the government’s Social Security policies[B] there is no guarantee that it will be profitable in the stock market[C] it is not proper for the brokerage

[单选题]The first paragraph is mainly about _______.A． teenagers’ criticisms on their parentsB． teenagers’ ability to deal with crisesC． parents’ dominance over their childrenD． parents’ misunderstandings of their children

[单选题]In the first sentence of Paragraph 3,the word "cushion" can be best replaced byA．put a cushion underB．relieveC．eliminateD．avoid

[单选题]A．ccording to the first paragraph an American student is allowed____．A．to live in a different universitiyB．to take a particular course in a different universityC．to live at home and drive to classesD．to get two degrees from two different universities

[单选题]The main idea of this passage is ______.A． many animals die during hibernationB． hibernation protects animals during the wintertimeC． scientists feel puzzled about hibernationD． some bats hibernate and others do not

[单选题]F．rom the first paragraph, we learn that ______.A． the number of prisoners in America is increasingB． America has the largest prison in the worldC． crime in America is getting much more seriousD． it is easy for a person to be locked up in America

[单选题]What is the main idea of the text?A． Delivering bad news properly is important in communication.B． Helping others sincerely is the key to business success.C． Receiving bad news requires great courage.D． Learning ancient traditions can be useful.