A．Because the information is too much and is displayed messily.
B．Because the information appears to be long and boring.
C．Because the information is too difficult to be remembered.
D．Because the clarity of the information dulls the function of the brain.
A．It enhances one's memory.
B．It lowers one's speed of learning.
C．It deepens the difficulty of learning.
D．It makes reading more easily.