题目

I have breakfast _________ 6:30 _________ Monday morning. A . at, in B . at, on C . in; on D . at, at 答案：B请你量一量，画一画．（1） 厘米 毫米；（2）画一条2厘米8毫米的线段，并在线段下方写上线段的长度．