合欢皮的功效是()
A.清心安神
B.潜阳安神
C.补气安神
D.解郁安神
E.养血安神
参考答案:D
—Have you read today’s report about your performance?
—I don’t care what about me.
A.will be written
B.writes
C.wrote
D.is written
当投射线与投射面垂直时,物体的投影称为物体的______.