当球的()无论在空中或地面越过边线和端线应判界外球。
A.1/2
B.3/4
C.整体
参考答案:C
Not only I but also Jane and Mary ______tried of having one examination after another.
A.am
B.be
C.are
D.is
区间两相邻线路中心线间的最小距离直线区间正线160km/h<v≤200km/h为()。
A、4200mm
B、4400mm
C、4600mm