单词:vegetation succession
单词:vegetation succession 相关文章
00:04.34]Language Structure: The Subjunctive Mood [00:09.82]A:I wish I could go swimming with you this afternoon. [00:17.11]B:Aren't you going? I thought you were. [00:21.71]A:A former classmate of mine is coming to see me after lunch,so I can't go.
This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The most common natural disaster in the U.S. is flash flooding, which usually hits out of the not clear blue sky. Now researchers are trying to establish an early warn
This is the VOA Special English Development Report. The Sahel is the area of Africa that lies between the Sahara desert to the north and more fertile land to the south. The dry plains of the Sahel are mostly treeless. Yet in Niger, one of the nations
By Larry James Secretary of State Colin Powell's resignation and the reported selection of National Security Advisor Condoleezza Rice as his successor is being watched with great interest in the Middl
在新托福阅读的考查中,每篇文章必会出现一类题,叫做Insert Text Questions,即插入句子题(简称插入题)。考试中,考生会遇到一句话,问该句插入文中哪里最合适。如下面例题: The raising of l