Read the comics every day and _______ the ones that remind you of your life. Post them on the refrigerator or anywhere else you can see them frequently.

A．cut out

B．cut up

C．cut down

D．cut in

试从结合键的角度讨论一般情况下金属材料比陶瓷材料表现出更高塑性或延展性的原因。