问题
选择题
| Every year, __ people go to visit their factory. |
A. a thousand of B. thousands C. thousand of D. thousands of |
答案
答案：D
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| Every year, __ people go to visit their factory. |
A. a thousand of B. thousands C. thousand of D. thousands of |
答案：D
时，鼻底到颏底的距离