题目

完形填空My younger sister is Cindy.__1__ is her birthday（生日）．My mother __2__ her a big cake.She is eight years old now.She likes cakes.__3__ the table in her bedroom, you can __4_ the nice cake.Her __5__ is on the cake.There are __6__ things for her birthday, too.__7__ are some apples, salad, ice cream, strawberries and oranges.But she'd_9__ to have something to drink now.Her __8__， Kate, Barry, Bill, and Frank are coming to her birthday party now.She likes to eat these things __10__ her friends.1．A.This            B．That                C．Today 1．已知函数f（x）=sin$\frac{π}{2}$x-1（x＜0），g（x）=logax（a＞0，且a≠1）．若它们的图象上存在关于y轴对称的点至少有3对，则实数a的取值范围是（　　）A．（0，$\frac{\sqrt{5}}{5}$）B．（$\frac{\sqrt{5}}{5}$，1）C．（-∞，-1）D．（0，$\frac{\sqrt{3}}{3}$）