List the oxymorons in line 70-79 in act3,scene 2. Why does Juliet speak this way?

They are all here in the text below:

O serpent heart hid with a flowering face!
Did ever dragon keep so fair a cave?
Beautiful tyrant! Fiend angelical!
Dove-feathered raven, wolvish-ravening lamb!
Despisèd substance of divinest show,
Just opposite to what thou justly seem’st.
A damnèd saint, an honorable villain!
O nature, what hadst thou to do in hell
When thou didst bower the spirit of a fiend
In moral paradise of such sweet flesh?
Was ever book containing such vile m