下列哪些业务中心经办柜员有权操作（）。
A.流程中的抹账
B.强制流程
C.中心抹账
D.以上均不正确
参考答案：A, C
_____________ this picture, the bird is singing.[ ]
A. In
B. On
C. At
D. To
—At that time, I could hardly believe my eyes.
—__________
A．So could I.
B．So I could.
C．Nor could I.
D．Nor I could.
