为保证施工质量，后张法工艺中孔道留设施工应（）。
A.在混凝土浇筑后尽快抽管
B.初凝前抽管
C.初凝后、终凝前抽管
D.尽量不抽管
参考答案：C
I have been living in the town for nearly thirty years, but seldom _____as lonely as I do now.
A．have I felt
B．I had felt
C．I have felt
D．had I felt.
和肝汤功效与作用
