.在分层设色地图上,绿色地区表示的地形是
A.高原
B.山地
C.丘陵
D.平原
答案:D
根据地图知识在分层设色地图上绿色代表平原。
We all think that the plan you come up with ____________ the work is very practical.
A.completing
B.completed
C.to complete
D.complete
电感储能电子点火系是怎样产生高压电的?