异位妊娠的发病机制是
A.肾气不足
B.脾肺气虚
C.脾气不足
D.阴阳失调
E.少腹宿有瘀滞
参考答案:A,C,E
()是输煤系统的控制指挥中心。
A.模拟屏
B.集控室
C.继电器室
Mrs. Smith bought that car as a birthday ______ for her daughter. [A] pleasure [B] party [C] present