项目可行性研究阶段,经济部分应编制( )。
A.投资估算
B.预算
C.标底
D.总概算
参考答案:A
Sometimes we might even need to spend some time _____ into a question or a request. [ ]
A. lead
B. to lead
C. leads
D. leading
ADSL的下行速率理论上能达到()Mbps。