Ghost Sweeper的歌詞如下:
歌詞
Ghost sweeper
Shadow in the dark
The spirit that haunts
You can't see my scar
Underneath the ground
I'll stay by your side
Just let me guide you through the endless night
Chorus
We're the ghost sweeper
We'll keep you safe from harm
Till the sun comes up
We'll guard you from the dark
Verse 2
Shadows on your mind
Don't let them in your dreams
You don't have to fight
Just let me be your eyes
Pre-chorus
We'll never let you fall
Into the abyss of hell
Cause we are the ghost sweeper
In the dark
Chorus
We're the ghost sweeper
We'll keep you safe from harm
Till the sun comes up
We'll guard you from the dark
Bridge
You don't have to be alone
In this endless night
I'll be your light in the darkest night
Till the sun shines on your face
Chorus x2
Outro:
We're the ghost sweeper求解下列各式:已知丨a丨=5,丨b丨=3,且a<b,求a+b的值。
因為丨a丨=5,丨b丨=3,所以a=±5,b=±3。又因為a<b,所以a=-5,b=±3。當a=-5,b=3時,a+b=-5+3=-2;當a=-5,b=-3時,a+b=-5-3=-8。$所以a+b$的值為$- 2$或$- 8$。