根据短文内容，完成下列各题。

We Both Like Music

    My name is Frank White. I'm fourteen years old. I was born on May 13th, 1999. Mike is my good friend. His birthday is May 15th. He is only twelve years old now. Every year on May 14th, we have a birthday party together(一起) at our school. Many friends come to our party. We all have a good time at the party. We both like music. We often have a pop concert. I play the guitar. He plays the drums. Mike often sends me some CDs and I often send him tickets for concerts.

—Maybe at midnight again.

脱式计算，能简算的要简算。

① $\frac{5}{6}$ ×1.2× $\frac{5}{6}$ ÷1.2             

②3.65÷1．25÷0.8   

③34÷( $\frac{3}{4}$ + $\frac{2}{3}$ )

④ $\frac{2}{5}$ × $\frac{11}{15}+\frac{2}{5}$ ÷ $\frac{15}{4}$        

⑤( $\frac{1}{2}+\frac{3}{4}$ )÷ $\frac{5}{6}-\frac{2}{3}$    

⑤35÷( $\frac{5}{6}-\frac{2}{3}$ )×3］

下面每个表格中的四个数都是按相同规律填写的：

根据此规律确定x的值为（　　）

一首电影插曲中有这样两句：“小小竹排江中游，巍巍青山两岸走”．前一句中的“竹排游”和后一句的“青山走”分别是以____和____为参考系．