以下关于“根管口”的解释哪个是正确的
A.根管末端的开口处B.髓腔的开口处C.髓腔中根分叉的位置D.髓室和根管交界的部分E.根管最细的地方
参考答案:D
In yesterday’s football game, our school football players performed well – they were in____ of the ball most of the time.
A.favor
B.need
C.memory
D.possession
以下不能由监管部门做出决定的有()
A、否决全部投标
B、中标无效
C、招标无效
D、评标无效