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【多选题】
机体组的主要功用包括()A.
是构成发动机的骨架。
B.
是发动机各机构和各系统的安装基础，其内、外安装着发动机的所有主要零部件和附件。
C.
承受各种载荷，并保证发动机各运动部件之间的准确位置关系。
D.
将活塞的往复直线运动转变为曲轴的旋转运动。
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【单选题】What was the concept or idea about AI seventy years ago?
A.
That machines would take over for humans.
B.
That AI would make a lot of money.
C.
That technology would be more important than humans.
D.
That a computer would think like a human.
【单选题】What was the main idea of Richard Feynman's speech in 1959?
A.
Research should focus on developing smaller technology.
B.
The atomic force microscope should be developed.
C.
Fullerenes and nanotubes should be developed.
D.
Research should focus on developing silicon chips.
【单选题】What was the main idea the author wanted to conclude?
A.
He was inspired by his interests in computer.
B.
A job at a newspaper can help you get experience.
C.
You can get whatever information you need if you want to.
D.
You need to follow interests and dreams so you can be successful.
【单选题】What was the Beecher sisters' idea of a kitchen?
A.
A place where women could work more efficiently.
B.
A place where high technology could be applied.
C.
A place of interest to the educated people.
D.
A place to experiment with new ideas.
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