题目内容
(请给出正确答案)
[主观题]
闭区域一定是有界域
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第8题
A、To sing with his wife.
B、To find out more about his brain.
C、To do research for a book about Neanderthal humans.
D、To investigate the raltionship between singing and brain activity.
第11题
A、圆弧过渡到圆弧
B、直线过渡到圆弧
C、圆弧过渡到直线
D、直线过渡到直线
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