若函数 $f\left(x\right)={\log }_{\frac{1}{3}}\left(3x^2-ax+5\right)$ 在﹣1，+∞）上单调递减，则a的取值范围是（   ）

—No, there aren't.

阅读下面这首诗，回答问题。
                                                                                                    过山农家
                                                                                               【唐】顾况
                                                                             板桥人渡泉声，茅檐日午鸡鸣。
                                                                             莫嗔焙茶烟暗，却喜晒谷天晴。                                                                    

朋友通过非法手段弄来一些物品，面对朋友“为他保管几天”的请求，你正确的做法是（    ）