题目

There are two _______ workers in this big company. A. thousands    B. thousand of    C. thousands of    D. thousand 答案:D 如图,点O在直线AB上,OC平分∠DOB.若∠COB=36°. (1)求∠DOB的大小; (2)请你用量角器先画∠AOD的角平分线OE,再说明OE和OC的位置关系.
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