面呈白色，其证是（）
A.热证
B.寒证
C.瘀证
D.实证
E.痛证
参考答案：B
Perhaps it is true that nobody in the world knows exactly how the earth __________.
A．came up
B．came out
C．came to power
D．came into being
什么是凝夜回收率，影响凝夜回收率的因素有哪些？
