土壤剖面样品的采集应()进行。
A、自上而下
B、从中间位置
C、随机
D、自下而上
参考答案:D
__________ is the first day of the week and ________ is the first month of the year.[ ]
A. Monday; January
B. Sunday; February
C. Sunday; January
绿地率、交通出入口方位、停车泊位、建筑后退红线距离不属于土地使用管制的内容。()