单项选择题

A．To show a videotape on survival in outer space.
B．To gain support for the space program.
C．To describe her experience on space missions.
D．To inform the audience about the space suit.
<上一题 目录 下一题>
热门 试题

单项选择题
A．It helps the body to digest food. B．It keeps milk fresh. C．It helps the body to absorb calcium. D．It prevents sunburn.
A．It helps the body to digest food.
B．It keeps milk fresh.
C．It helps the body to absorb calcium.
D．It prevents sunburn.
单项选择题
A．Electric cars. B．Increasing fuel efficiency. C．California’s pollution laws. D．Automobile safety.
A．Electric cars.
B．Increasing fuel efficiency.
C．California’s pollution laws.
D．Automobile safety.
相关试题