If China’s space technology has achieved ____ breakthrough in this field, it really is ____ amazing ...
2023-01-16 18:45:58 102次 2010-2011学年辽宁省开原市六校高三上学期第一次联考英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
If China’s space technology has achieved
____ breakthrough in this field, it really is ____ amazing
wonder.
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A．the; an
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B．a; an
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C．不填; the
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D．a; 不填
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