下颌第一磨牙最小的牙尖是()
A.近颊尖
B.近舌尖
C.远颊尖
D.远舌尖
E.远中尖
参考答案:E
Chinese climbers carried the Olympic Flame( 奥运圣火) to the top of the world's highest mountain
________ 8th May 2008. [ ]
A. on
B. at
C. in
D. from
疏干或疏降水体开采主要是在开采中采用地面定向钻孔疏降的方法。