已知\(D\;,\;E\;,\;F\)分别是\(\vartriangle ABC\)边\(AB\;,\;BC\;,\;CA\)的中点，则下列-可可试卷app

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已知\(D\;,\;E\;,\;F\)分别是\(\vartriangle ABC\)边\(AB\;,\;BC\;,\;CA\)的中点，则下列等式中不正确的是( )．

A.\(\overrightarrow {FD} + \overrightarrow {DA} = \overrightarrow {FA} \)

B.\(\overrightarrow {FD} + \overrightarrow {EF} + \overrightarrow {DE} = \overrightarrow {BC} \)

C.\(\overrightarrow {DE} + \overrightarrow {DA} = \overrightarrow {EC} \)

D.\(\overrightarrow {DF} + \overrightarrow {DE} = \overrightarrow {DC} \)

参考答案：B