News media are the means or methods by which people learn what is happening in the city, in the country and in the world. The news media can be classified into two general categories of print media and electronic media. Print media use the written material to communicate news to readers. Electronic media use air waves to send news into homes, offices and public places. Print media are usually divided into magazines and newspapers. Most newspapers print news daily. For example, the newspaper “ The New York Times” is published every day of the year. Most news magazines are published weekly, for instance. Newsweek and Time magazines are published once a week. The electronic media are generally divided into radio and television. Radio news is news that you listen to. In the United States, many radio stations broadcast five minutes of news every hour. T.V news is news that you not only listen to but also watch. In Canada and the United States, for example, many people watch an hour of news on TV at 6 o’clock in the evening. In the future new categories of news media will develop. Even today computers are beginning to influence the transmission and reception of news
Câu 1: What do the print media use to communicate the news?
A. TV                      B. air waves                       C. radio                          D. newspapers
Câu 2: What do the electronic media use to communicate the new? 
A. radio program           B. television program              C. newspaper                     D. magazine
Câu 3: What is the best title for the passage?
A.Electric media               B.Print media                   C.News media                  D.Electronic media
Câu 4: Which of the following print media is NOT mentioned in the passage?
A. Newsweek                   B. Times         C. Sunflowers                   D. The New York Times
Câu 5: Which of the following media is broadcast?
A. book                 B. TV                     C. magazines                  D. newspapers

Cho phương trình: x² - 2(m-1)x+ m² -3 =0 (1) (với x là ấn số, m là tham số).
a) Giải phương trình (1) với m=-1;
b) Xác định các giá trị của m để phương trình (1) có hai nghiệm x₁; x₂, thoả mãn điều kiện: x₁² +2(m -1)x₂ = m² +1.

Giúp mk vs