问题
选择题
| A new study proves a _____ walk every day is enough to keep people away from becoming fat. |
A. 30一minute B. 30 minute's C. 30一minutes |
答案
答案：A
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| A new study proves a _____ walk every day is enough to keep people away from becoming fat. |
A. 30一minute B. 30 minute's C. 30一minutes |
答案：A