单项选择题

What abruptly ended Thompson's dream of the past

A．The realization that this wag only a time-consuming fantasy.
B．The glimpse of an important clue to future discovery.
C．A resolution derived from his fantasy that he must learn more about this great past city.
D．The locating of the mysterious Sacred Welt.

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单项选择题

Which of the following correctly describes Cosmos I

A．It is a 3-ft. metal pod.
B．It has eight 35-ft. metallic wings.
C．It can fly an altitude above 260 miles.
D．When it flies back to Earth, it will fall into pieces.

单项选择题

What can be inferred from the passage

A．Most scientists are confident that the spacecraft will work well.
B．A more ambitious orbital flight will follow this mission.
C．The author is quite sure that this mission will make impossible technologies seem possible.
D．The key of the engineering of Cosmos I is building wings that can open and pivot.