若\({\left( {\frac{1}{3}} \right)^{2a + 1}} {\left( {\frac{1}{3}} \right)^{4

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若 \({\left( {\frac{1}{3}} \right)^{2a + 1}} < {\left( {\frac{1}{3}} \right)^{4 - a}}\) ，则实数 \(a\) 的取值范围是( )

A.\(\left( {1, + \infty } \right)\)

\(\left( { - \infty ,1} \right)\)

C.\(\left( {3, + \infty } \right)\)

D.\(\left( { - \infty ,3} \right)\)

参考答案：A