某专业养殖户第一年养鸡320只,计划第三年养鸡1 500只,则平均年增长率约为( )
A:65%
B:100%
C:116.5%
D:95%
—Shall we go for a picnic tomorrow?
—Well, it all ________ the weather.
当太阳直射点由d﹣a移动时,下列说法正确的是( )