题型:问答题 简答题 _____ he was tired, _____ he didn't stop _____.A. Although, but; to rest B. Though; /; working C. Although; /; resting D. though; but; working 查看答案
题型:问答题 简答题 如图所示,一个金属导体做成的三角形线圈,以恒定速率v运动,从无场区进入匀强磁场区,然后出来,若取逆时针方向为电流的正方向,那么图下中所示的哪个图象能正确地表示回路中的电流随时间的函数关系(已知L>d) [ ]A.B.C.D. 查看答案