题型:问答题 简答题 小华与平面镜的距离为3m,他以0.5m/s的速度向竖直放置的平面镜走进,人在平面镜中像的大小将______(填:变大/不变/变小),经过2s后他向平面镜走近了______m,这时人与像距离为______m. 查看答案
题型:问答题 简答题 The Class 3 and Class 1 runners both ran very slowly. ______ of them ran faster than the Class 4.[ ]A.EitherB.Nobody C.None D.Neither 查看答案