如果把长江的水位比警戒水位高0.2米,记作+0.2米,那么比警戒水位低0.15米,记作( ) 米.
﹣0.15
_____ was most shocking about the tornadoes in America was that they threatened six states
and killed more than 100 persons. [ ]
A. That
B. Which
C. Why
D. What
读图析图:
1.写出图中图例所代表的经济作物名称。A______________,B_____________,C________________,D_________________区。
2.用图例在图上绘出我国棉花的主要分布。