问题
选择题
There are three______ workers in this factory. My brother is in it ,too.
A．thousand
B．thousands of
C．thousand of
D．thousands
答案
答案：A
题目分析：句意：在这个工厂有三千个工人。三千具体数字，不加s，thousands of，数千，模糊数字，故选A。
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