中文谷SincethreeChineseastronautspilotedShenzhouIXtolinkupwi...
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問題詳情：
Since three Chinese astronauts piloted Shenzhou IX to link up with Tiangong-1, China’s exploration of _____ outer space has stepped into _____ new era.
A. /; a B. the; a C. a; the D. /; /
【回答】
A
知識點：冠詞
題型：選擇題
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