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若用如下的SQL语句创建一个表S: CREATE TABLE S(S# Char (16) NOT NULL; SNAME char(8) NOT NULL,SEX char(2),AGE integer)向表S中插入如下行时,哪一行可以被插入

A. ('991001','李明芳',女,'23')
B. ('990746','张民',NULL,NUL
C. (NULL,'陈道明','男',35)
D. ('992345',NULL,'女',25)

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Text 4Television--that most pervasive and persuasive of modem technologies, marked by rapid change and growth--is moving into a new era, an era of extraordinary sophistication and versatility, which promises to reshape our lives and our world. It is an electronic revolution of sorts, made possibly by the marriage of television and computer technologies.The world "television", derived from its Greek (tele: distant) and Latin (vision: sight) roots, can literally be interpreted as sight from a distance. Very simply put, it works in this way: through a sophisticated system of electronics, television provides the capacity of converting an image (focused on a special photoconductive plate within a camera) into electronic impulses, which can be sent through a wire or cable. These impulse, when fed into a receiver (television set) , can then be electronically reconstituted into that same image.Television is more than just an electronic system, however. It is a means of expression as well as a vehicle for communication, and as such becomes a powerful tool for reaching other human beings.The field of television can be divided into two categories determined by its means of transmission. First there is broadcast television, which reaches the masses through broad -based airwave transmission of television signals. Second, there is nonbroadcast television, through which provides for the needs of individuals or specific interest groups through controlled transmission techniques.Traditionally, television has been a medium of the masses. We are-most familiar with broadcast television because it has been with us for about forty - seven years in a form similar to what exists today. During those years, it has been controlled, for the most part, by the broadcast networks, ABC, NBC and CBS, who have been the major purveyors of news, information, and entertainment. These giants of broadcasting have actually shaped not only television but our perception of it as well. We have come to look upon the picture tube as a source of entertainment, placing out role in this dynamic medium as the passive viewer. Which of the following statements about the relationship between television and its viewers can best be inferred from the passage()

A. Viewers do not take an active role in watching television.
B. Viewers would prefer increased news coverage.
C. Viewers like to use television to reach other human beings.
D. Viewers have grown tired of television.

2000年某院收治肺癌患者300名,其中60名接受化疗,其余接受手术治疗,2005年对其中150名术后患者进行电话随访,有56名患者已经死亡,则该院肺癌术后5年生存率为

A. 37.33%
B. 62.67%
C. 39.17%
D. 23.33%
E. 31.33%

The professor talked to American and Brazilian students about lateness in both an informal and a formal situation: lunch with a friend and in a university class, respectively. He gave them an example and asked them how they would (1) if they had a lunch appointment with a friend, the average American student (2) lateness as 19 minutes after the (3) time. On the other hand, the average Brazilian student felt the friend was late after 33 minutes.In an American university., students are expected to arrive at the appointed (4) Classes not only begin, but also end at the (5) time in the United States. In the Brazilian class, only a few students left the class at noon; many (6) past 12:30 to discuss questions. (7) arriving late may not be very important in Brazil, (8) is staying late. The (9) for these differences is complicated. People from Brazilian and North American (10) have different feeling about lateness. In Brazil, the students believe that a person who usually (11) than a person who is always (12) . In fact, ..Brazilians expect a person with (13) or prestige to arrive late, while in the United States lateness is usually (14) disrespectful and unacceptable. (15) , if a Brazilian is late for an appointment with a North American , the American may misinterpret the (16) and become angry.As a result of his study, the professor learned that the Brazilian students were not being (17) to him. Instead, they were simply be having in the (18) way for a Brazilian student in Brazil. Eventually, the professor was able to (19) his own behavior so that he could feel (20) in the new culture. 20()

A. Nevertheless
B. However
C. Occasionally
D. Consequently

Mary said she would come ______ you went to pick her up at 7.

A. [A] only if
B. [B] if only
C. [C] only
D. [D] when

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