科技英语阅读8

来源：百度知道 编辑：UC知道 时间：2024/05/26 17:42:31
To solve all these problems the aircraft industry has a large number of research workers， with elaborate laboratories and test houses， and new materials to give the best strength in relation to weight are constantly being tested.

36. The two main requirements of aircraft design are ______.
A. speed and cheapness
B. reliability and passenger comfort
C. making things both light and dependable
D. ability to stay up in the air and avoid breakdowns
37. The maximum possible weight of an aircraft is determined by ______.
A. the engine power
B. the amount of freight room
C. the number of passengers
D. international regulations
38. The stress man‘s job is to calculate ______.
A. how safe the plane is
B. how strong each part must be
C. what height the plane will fly at
D. the amount of luggage each passenger may carry
39. The first three aeroplanes of a new type ______.

36-40 CABBB

36. The two main requirements of aircraft design are ______.

C. making things both light and dependable
"...the need to make every component as reliable as possible and the need to build everything as light as possible"

37. The maximum possible weight of an aircraft is determined by ______.
A. the engine power
"Given a certain power of engine, ..."
38. The stress man‘s job is to calculate ______.

B. how strong each part must be
"He takes account of any unusual stress that may be put on the part as a precaution against errors in manufacture，accidental damage， etc"

39. The first three aeroplanes of a new type ______.

B. are used for testing purposes
"When a new type of aeroplane is being made，normally only one of the first three made will be flown. Two will be destroyed on the ground **in structural tests**. The third one will **be tested in th