中国大学MOOC: Which is the right expression of “您可以把胳膊向外伸直吗”？
Can you put your arm out straight?
举一反三
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中国大学MOOC: Which expression is proper?
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Which of the following expression is NOT right?
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Which is the right expression of “少量多餐”?_
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Which is the right expression of “脊髓灰质炎疫苗”？
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which is the right expression for C=A×B