单项选择题


Questions 19 to 21 are based on the conversation you have just heard.

A．Building relationship with outer space.
B．Making profits.
C．Creating a stepping-stone to scientific research.
D．Fostering international scientific cooperation.
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单项选择题
A．Wars or natural disasters make them lose their families.B．They want to help their families cam enough money to survive.C．They are poor.D．All the above.
A．Wars or natural disasters make them lose their families.
B．They want to help their families cam enough money to survive.
C．They are poor.
D．All the above.
单项选择题
A．Philip was a rude boy.B．Philip was asked to leave the library.C．Philip was not old enough to read in this library.D．Philip damaged the hook by falling it to the floor.
A．Philip was a rude boy.
B．Philip was asked to leave the library.
C．Philip was not old enough to read in this library.
D．Philip damaged the hook by falling it to the floor.
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