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发布时间:2024-05-22 06:13:23

[单选题]_______ is an imaginary straight line drawn through an airfoil from the leading edge to the trailing edge.
A.Camber of an airfoil
B.Leading edge
C.Trailing edge
D.Chord line

更多"[单选题]_______ is an imaginary straig"的相关试题:

[单项选择]

Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much had happened (21) . As was discussed before, it was not (22) the 19th century that the newspaper became the dominant pre-electronic (23) ,following in the wake of the pamphlet and the book and in the (24) of the periodical. It was during the same time that the communications revolution (25) up, beginning with transport, the railway, and leading (26) through the telegraph, the telephone, radio, and motion pictures (27) the 20th-century world of the motor car and the airplane. Not everyone sees that process in (28) . It is important to do so.
It is generally recognized, (29) , that the introduction of the computer in the early 20th century, (30) by the invention of the integrated circuit during the 1960s,radically changed the process, (31) its impac
A. concept
B. dimension
C. effect
D. perspective

[单项选择]What conclusion can be drawn from the passage


A. The organization of the Olympic Games must be improved.
B. Athletes should compete as individuals in the Olympic Games.
C. Sport should be played competitively rather than for the love of the game.
D. International contests are responsible for misunderstanding between nations.
[单项选择]What useful information can be drawn from the passage by a chronic Lyme patient
A. We are stir not out of the woods in curing the disease.
B. They should take cautions against being further inflect.
C. We have both traditional and new ways to treat the disease.
D. They should keep alert while traveling in a Lyme-infected are
[单项选择]What conclusion can be drawn from the last paragraph of the passage about researches conducted concerning ageism


A. The author is trying to make something clear about their differences.
B. The author is demonstrating some of the differences between them.
C. The author is discussing the result of different methodologies employed.
D. The author is trying to make some conclusive researches by himsel

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