Events enter the long-term memory if ______.

A．We are more likely to remember things we do than things we see.
B．People always remember pleasant things rather than unpleasant ones.
C．Our ability to remember something depends on our feelings when it happens.
D．We tend to have better long-term memories than short-term memories.

A．The patient is relieved of pain.
B．The patient's arterial condition is permanently cured.
C．The patient has a 50% chance of being incapacitated again within a year.
D．The patient is not likely to have trouble in his other arteries if he has one artery bypass by surgery.