以下是《Dreamcatcher July 7th》的歌詞：
Verse 1：
Rain is falling all around
Oh my god I can't believe
This is the day I've been dreading
Oh my god it's true
Chorus：
July 7th it's the day we meet
I'm so scared but I'm ready to let go
Dreamcatcher I'll be waiting for you
Beneath the stars it's the time to start our love story
Verse 2：
Dark clouds fill the sky with regrets
Oh my god it won't last long
Just give me time and I will be free
It won't be long before I feel it with me
(Chorus)
Bridge：
With every kiss the night becomes brighter
So much love now don't let go
No more tears tonight, our love is strong enough to make it through the storm
(Chorus)
Outro：
July 7th, the day our story began在代數式 x 2 - 3x + 2， x 3 - x， x 4 - x + 1， x 5 - x + 2 中，多項式有（ ） A．1個 B．2個 C．3個 D．4個
分析：根據多項式的定義進行判斷．多項式中每個單項式叫做多項式的項，這些單項式中的最高次數，就是這個多項式的次數．根據定義即可作出選擇．
解：多項式有$x^{3} - x$，$x^{4} - x + 1$共兩個．故選B．