设A1,A2,A3,A4,A5是空间中给定的5个不同的点，则

更新 2022-09-03
科目数学
题型选择题
难度中等
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设 $A_{1}, A_{2}, A_{3}, A_{4}, A_{5}$ 是空间中给定的5个不同的点，则使 $\overset{⇀}{M A_{1}} + \overset{⇀}{M A_{2}} + \overset{⇀}{M A_{3}} + \overset{⇀}{M A_{4}} + \overset{⇀}{M A_{5}} = \overset{⇀}{0}$ 成立的点 $M$ 的个数为（）

A．

B．

C．

D．

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