比例尺的表示形式通常有____式、____式和文字式。
下列有关单倍体的叙述中，正确的是（ ）
Dale used to _____to office in his car, but he is used to_____ the bus now.
把词语补充完整。
____曲而上 突兀____ ____不断
My father is a teacher. He loves________ students very much.
