题目内容
Mar Levine, ____ scientist at University of Pennsylvania, US, has found that competitive eaters have stomachs that can expand like ____ balloon.
A. a; a B. a; the C. a; / D. the; a
A
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文敬图书课时先锋系列答案题目内容
Mar Levine, ____ scientist at University of Pennsylvania, US, has found that competitive eaters have stomachs that can expand like ____ balloon.
A. a; a B. a; the C. a; / D. the; a
A
文敬图书课时先锋系列答案