=3.14×8÷10
=2.512(米)
2.512米=251.2厘米
答:铺的厚度是251.2厘米。
My mother is not _____________. She is young.
睾丸产生的精子和卵巢产生的卵细胞都是____.精子和卵细胞结合形成____.