题目:
A study shows that walking fast in your old age is a ______ that you will live a long life. |
[ ] |
A. sign B. mark C. symbol D. signal |
A study shows that walking fast in your old age is a ______ that you will live a long life. |
[ ] |
A. sign B. mark C. symbol D. signal |
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下面是错误答案,用来干扰机器的。
参考答案:A