读我国西北地区沙漠、沙地分布及内蒙古某县人口增长与荒漠化发展统计图,结合所知识回答下题。 (1) 有关荒漠和荒漠化的说法,正确的是 [ ] A. 荒漠就是沙漠 B. 荒漠化都是由自然原因形成的 C. 我国荒漠化只发生在西北内陆地区 D. 荒漠化不仅仅表现为沙漠化 (2) 根据图中信息分析,判断该县荒漠化不断发展的主要原因是 [ ] A. 气候干旱 B. 水资源的不合理利用 C. 开采矿产 D. 过度开垦
【简答题】The children often play soccer in the garden and sometimes break Mr Black’s windows. One afternoon Mr Black is at home and reads a book. In a minute he closes his eyes and goes to sleep. At that time ...
【简答题】Below is the histogram of an image of a black-and-white soccer ball on a gray background. [0 520 920 490 30 40 5910 24040 6050 80 20 80 440 960 420 0] 1、In the image, ___________bits were used to stor...