By comparison, the author considers that ______.
A. a more advanced civilization will destroy us if they visit us at present
B. the original inhabitants of America were better off because of Columbus' visit
C. being visited by a more advanced civilization will do us good
D. we wouldn' t be better off even though we were visited by the beings from outer space at present
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出張から帰るとき、なにか（ ）を買ってちょうだい。
A. おみやげ
B. プレゼント
C. にもつ
D. もの
The author thinks that ______.
A. it is impossible that we encounter some alien form of life
B. life only exists on Earth
C. it is likely that we'll encounter some alien form of life
D. beings from outer space will never visit the earth
The main purpose of the passage is to ______.
A. discuss the influence of Dorothea Dix on the mental health movement
B. shock the reader with vivid descriptions of asylums
C. increase public awareness of the plight of the mentally ill
D. provide a historical perspective on problems of mental health care
在我国，建筑施工企业的项目经理是一个( )的名称。
A. 工作岗位
B. 技术职称
C. 管理级别
D. 专业级别
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