单项选择Zerois
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问题详情:
单项选择
Zero is _______ important invention because it made it easier to write big numbers and to calculate. A. a B. an C. the D. /
【回答】
B
知识点:冠词
题型:选择题
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问题详情:
单项选择
Zero is _______ important invention because it made it easier to write big numbers and to calculate. A. a B. an C. the D. /
【回答】
B
知识点:冠词
题型:选择题