参考答案:D
灌溉入渗补给量Qgs=μ·H=0.03×0.1=0.003m=3mm。
Directions:
请按下列提纲写一篇《青春》杂志编辑部的征稿启事 (Contribution Wanted):
1)征稿原因;
2)稿件内容;
3)截稿日期。
You should write about 100 words on ANSWER SHEET 2. Do not sign your own
name. Use "Li Ming" instead. You do not need to write the address.
我来回答:
最新试题