I can't cook as well as my mother does. A. My mother can cook better than I can. B. My mother can't cook better than I can. C. My mother can cook well than I can. D. I can cook better than my mother can.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42. According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the tamily, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment. Although leaders are often thought to be people with unusual personal ubility, decades ot research have failed to produce consistent evidence that there is any category ot “natural leaders”. It seems that there is no set of personal qualities that all leaders have in common; rather, virtually any person may be recognized as a leader if the person has qualities that meet the needs ot that particular group. Furthermore, although it is commonly supposed that social groups have a single leader, research suggests that there are typically two different leadership roles that are held by different individuals. Instrumental leadership is leadership that emphasizes the completion of tasks by a social group. Group members look to instrumental leaders to “get things” done.” Expressive leadership, on the other hand, is leadership that emphasizes the collective well-being of a social group’s member. Expressive leaders are less concerned with the overall goals of the group than with providing emotional support to group members and attempting to minimize tension and conflict among them. Group members expect expressive leaders to maintain stable relationships within the group and provide support to individual members. Instrumental leaders are likely to have a rather secondary relationship to other group members. They give orders and may discipline group members who inhibit attainment of the group’s goals. Expressive leaders cultivate a more personal or primary relationship to others in the group. They offer sympathy when someone experiences difficulties or is subjected to discipline, are quick to lighten a serious moment with humor, and try to resolve issues that threaten to divide the group. As the differences in these two roles suggest, expressive leaders generally receive more personal affection from group members; instrumental leaders, if they are successful in promoting group goals, may enjoy a more distant respect. What does the passage mainly discuss? A. The problems faced by leaders B. How leadership differs in small and large groups C. How social groups determine who will lead them D. The role of leaders in social groups

Tốc độ góc của một kim giây đồng hồ bằng A. 60rad/s B. π rad/s C. π30rad/s D. 2 rad/s

Địa hình nào sau đây là địa hình nhân tạo? A. Địa hình cacxtơ. B. Địa hình đồng bằng. C. Địa hình đê sông, đê biển. D. Địa hình cao nguyên.

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Khi nói về dao động cơ tắt dần của một vật, phát biểu nào sau đây đúng? A. Li độ của vật luôn giảm dần theo thời gian. B. Gia tốc cùa vật luôn giảm dần theo thời gian, C. Vận tốc của vật luôn giảm dần theo thời gian. D. Biên độ dao động giảm dần theo thời gian.

Đông Nam Bộ hiện nay đứng đầu cả nước về A. trồng các loại cây lương thực. B. phát triển khai thác dầu và khí. C. trữ năng thủy điện ở các sông. D. chăn nuôi gia cầm và thủy sản.

It is a long time since we last met. → We haven't A. meet for a long time B. meet each other for a long time C. met each other for a long time D. meet since a long time