单项选择题

Conservative scientists who deny that cosmic gulfs can ever be crossed will ______.

A．laugh at the very idea of flight
B．learn a lesson as they did ten years ago
C．find space travel beyond their reach
D．oppose the fundamental scientific laws

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热门试题

单项选择题

For light to travel across the solar system, it will take ______.

A．a year
B．nearly a day
C．two months
D．thirty minutes

单项选择题

According to the passage, special cases refers to cases where ______.

A．students attend a school only part-time
B．students purchase false degrees from commercial firms
C．students never attended a school they listed on their application
D．students attended a famous school