A.
判定通电螺线管的磁场
B.
是光的折射作图
C.
是杠杆的力臂作图
D.
是利用两个滑轮的滑轮组,使用最小的力拉动陷入泥地的汽车
答案:D
The news of the newly-elected president's coming to China for a visit was _____ on the radio just now.[ ]
A. given away
B. given in
C. given off
D. given out