A:水泥混凝土土路面有很多花纹,是为了减小车轮与地面的摩擦力
B:水泥混凝土路面厚度一般为0.22m,是为了增大路面的抗压能力,防止路面被压坏
C:水泥混凝土要切制成一段一段的,可以改变路面的比热容
D:水泥混凝土浇灌时要加入一定比例的鹅卵石,是为了减小路面的密度
Dear Betty,
I'm your eraser Jill. This afternoon you lost me in your classroom. Simon found me and gave me to your English teacher Ms. Green. Now Ms. Green's three keys and I are in Ms. Green's bag. The bag is yellow. It's on Ms. Green's desk. Please call Ms. Green at 718-0167 and ask her for me. You can come to the library, too. Ms. Green is in the library now.
Jill
中纬度是指( )
— Yes. __________.