电动力学修复
参考答案:
利用电动力学原理对受污染土壤进行修复的方法。
When I went to watch the 16th Asian Games last month, I was greatly touched by the fact that
____ people from all walks of life are working hard for ____ new Guangzhou. [ ]
A. the; a
B. /; a
C. the; the
D. /; the
风湿性心脏炎一般发生于风湿热起病的()
A.1周以内
B.1~2周
C.3~4周
D.1~2个月
E.3~6个月