下图是某地等高线地形图，读图判断下列描述正确的是

A．甲地的海拔低于240米

B．乙处为盆地

C．丙处是山脊

D．Q坡较P坡平缓

假定英语课上老师要求同桌交换修改作文， 请你修改你同桌写的以下作文。文中共有

十处语言错误， 每句中最多有两处。错误涉及一个单词的增加， 删除， 或修改。

增加：在缺词处加一个漏字符号(∧)，并在下面写出该加的词。

删除：把多余的词用斜线( \ )划掉。

修改：在错的词下划一横线，在该词下面写出改正后的词。

注意： 每处错误及修改均仅限一次;只允许修改10处， 多者从第11处起不计分。

“Saving the Earth” Conference holding in Dalian came to end last Saturday. The five-days conference was attended by experts and scientists from more than fifty countries. The subject discussed at the meeting including: pollution, population and wildlife protection. Three main speakers spoke on different subjects. The experts and scientists sharedwitheach other’s ideas.

The conference suggested that all countries took their responsibilities for preventing pollution, controlling population growth and plant more trees. It encouraged people of the world take good care of the earth. It is hoping that one day the world will be a place which men can enjoy a better life.