产褥期，下列器官逐渐恢复或接近正常未孕状态的是（）
A.输尿管
B.子宫
C. * *
D. * *
E.外阴
参考答案：A, B, C, E
．______ surprised the family most was ________the girl played basketball very well．
A．That; that
B．That; what
C．What; that
D．What; what
当频率低于49.8赫兹时，各发电厂值班员无需等待调度指令，立即自行增加有功出力，直至频率恢复至49.9赫兹或发电机带满出力、联络线满载为止..
