Have you the people here? It is said that they have a kind of strange illness.
A:hear
B:heard
C:noticed
D:notice
由于台风的影响,一棵树在离地面6m处折断,树顶落在离树干底部8m处,则这棵树在折断前(不包括树根)长度是( )
我国现阶段的资源状况如何?要解决资源问题要实施何种战略?这种战略的含义是什么?