题目内容

It can be inferred from the story that ______

A. all tracking stations arc inside Perth, Australia
B. Friendship 7 stopped in the United States
C. radio equipment is important in space flights
D. John Glenn worked alone in the tracking station

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更多问题

During his flights, John H. Glenn, Jr. , could always reach a ______

A. tracking station
B. ship at sea
C. Mercury capsule
D. city of Perth

经常项目和资本项目下都实现了货币自由兑换，该国货币才能被列为可兑换货币。 ()

A. 正确
B. 错误

【B20】

A. hero
B. success
C. welcomed
D. beauty

【B16】

A. joined in
B. set up
C. invited
D. worked in