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【单选题】
He fifty when I met him the first time.A.
must be
B.
must have been
C.
should be
D.
should have been
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【简答题】Purchasing: how to ensure that suppliers consistently meet deadlines
【单选题】How does Bill’s company ensure product safety?
A.
By testing products on animals.
B.
By developing safety technologies.
C.
By conducting human experiments.
D.
/
【单选题】你们怎样确保食品安全?
A.
How about the food safety?
B.
How do you ensure the food safety?
C.
What about the food insurance?
D.
Can you ensure the food safety?
【单选题】What is the main topic of this news?
A.
How to ensure safe navigation at night.
B.
The possible reasons for greenhouse effect and the solutions.
C.
How to use the Sun's rays to help flights.
D.
Negative effects of the nighttime flight on the environment.
【简答题】Information Management: how to ensure that information is managed effectively within a company
【多选题】下列( )表述属于现代建筑的设计思想。
A.
建筑要有新功能，新技术，特别是新形式
B.
在建筑美学上提倡外加装饰
C.
建筑具有艺术与技术的双重性，提倡两者结合
D.
提倡建筑设计的表里一致并认为建筑空间是建筑的实质
E.
主张摆脱过时的建筑式样的束缚，放手创造新的建筑风格
【简答题】A．How to make a powerful rocket engine. B．How to ensure the safety of the crew. C．How to choose qualified crewmen for the trip. D．How to enable the spacecraft break free of gravity.
【简答题】所谓三相对称绕组，是指（）都相同，且在空间（）的三相绕组。
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