有一次全市统考,高三年级文科综合测试题中有一道等高线地形图题,图中有山顶、山脊、山谷、鞍部和陡崖等等,还有两组等值线,一组是向高值处弯曲,另一组是向低值处弯曲。设问分别是:哪一处是山谷?哪一处可发育成河流?陡崖的相对高度大约是多少?每一问分别给出四个选项,看似简单的题目,我校的错误率分别是:75%、82%、78.8%,错误率之高出乎我的意料之外。 There is an examination of the city once a year, a comprehensive high school three-dimensional arts test topographic map contour problem, the map has the top, ridges, valleys, saddles and steep cliffs, etc., there are two sets of contour lines, a group of high The value of the bend, the other is to bend the low value. The questions are: Where is the valley? Where can be developed into a river? Cliff relative height is about how much? Each asked were given four options, seemingly simple problem, the error rate of our school respectively Is: 75%, 82%, 78.8%, the error rate is higher than I expected.