A.\(\dfrac{{3\sqrt 6 }}{8}\)B.\(\dfrac{9}{{\sqrt {141} }}\)C.\(\dfrac{{\sqrt {15} }}{9}\)D.\(\dfrac{{\sqrt {10} }}{8}\)
A.\(0\)B.\(1\)C.\(2019\)D.\(2020\)
A.\(2007\)B.\(2021\)C.\(2019\)D.\(2022\)
A.\(\dfrac{{3{a^3}}}{{16}}\)B.\(\dfrac{{9{a^3}}}{{16}}\)C.\(\dfrac{{9{a^3}}}{{32}}\)D.\(\dfrac{{3{a^3}}}{{32}}\)
A.\(\left( {1;2} \right)\)B.\(\left( {2;3} \right)\)C.\(\left( {3;4} \right)\)D.\(\left( {0;1} \right)\)
A.\(14\)B.\(7\)C.\(21\)D.\(10\)
A.completesB.will completeC.are completingD.will have completed
A.am working / will retireB.am going to work / am retiringC.work / am going to retireD.have been working / retire
A.will get / has been waitingB.got / was waitingC.got / had been waitingD.get / will wait
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