一盒产品中有<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/2cefaaf8bcb54c61977cecb4f0e40dea.png" >只正品，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/65c8182d811f448784675cc993c132d2.png" >只次品，有放回地任取两次，第二次取到正品的概率为（）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/73a908d0e00e4b44b0f7c78fe3c62154.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/f36521dfc9c64099b22f506146ac867d.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/4c42ae8aa5544a68a018618378bda287.png" > D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/f7ca6abeab84438095bee512a092be80.png" >