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With ________ successful launching of Tiangong1，China's space dream has taken ________ step closer to reality.
| A．the；a | B．/；a | C．a；the | D．the；/ |
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With ________ successful launching of Tiangong1，China's space dream has taken ________ step closer to reality.
| A．the；a | B．/；a | C．a；the | D．the；/ |
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