排便反射属于
A.正反馈调节B.负反馈调节C.前馈调节D.非自动控制调节E.免疫调节
参考答案:A
The truck ran down the hill, and the driver _____, according to the local newspaper, to have been killed.
A.was reported
B.was reporting
C.reported
D.had been reported
简述中间业务?