路基施工程序是准备工作、()、路基土(石)方.亡程、质量检查与验收等。
A.修建小型构造物与埋设地下管线
B.路基施工测量
C.排除地面积水
D.清除地表腐殖土
参考答案:A
The man was seen the park. But now we couldn't find him there. [ ]
A. enter
B. to enter
C. going
D. went into
为什么从输送电能的角度希望电压高?