单项选择题

A．We should blame external factors.
B．We should blame internal factors.
C．We should blame others.
D．We needn’t blame ourselves.
<上一题 目录 下一题>
热门 试题

单项选择题
A．They can be bred in any conditions.B．They produce oxygen.C．They can easily be carried in spaceships.D．They are organisms.
A．They can be bred in any conditions.
B．They produce oxygen.
C．They can easily be carried in spaceships.
D．They are organisms.
单项选择题
A．To show that air travel is far safer than driving a car.B．To show the great responsibility shouldered by the pilots.C．To give an example of air disasters.D．To show the key role played by air traffic controllers.
A．To show that air travel is far safer than driving a car.
B．To show the great responsibility shouldered by the pilots.
C．To give an example of air disasters.
D．To show the key role played by air traffic controllers.
相关试题