2008.2.24大陆(重复2006.10.29大陆)（2008.2.24 continent (repeat 2006.10.29 continent)）.doc

2008.2.24大陆(重复2006.10.29大陆)（2008.2.24 continent (repeat 2006.10.29 continent)） 2008.2.24 CN (CN 2006.10.29) Test time: 2008.2.24 The test area: the mainland Type: reading test Test content: 1. on an upland soil condition, mainly about two kinds of ice crystal formation and the implication to the plants. One is the vertical development of icicles, one is horizontal development. In which case several icicles will become long (m), what kind of situation will melt. The ice will allow the soil to become crisp, because soil moisture absorbed, in the special period, some ice freezing releases heat, the heat and cold weather freeze balance, potato in equilibrium, beets will not freeze. 2. questions about geography, Greenland (Greenland) on the geographical discovery, residents living in the island on the edge of the inland is poor (with multiple choice). The island is very suitable for the development of animal husbandry, European immigrants arrived, someone lost a pig, the pig back back a group of 40. A cow is gone, the results also brought back a group. Why does the author say that the proper way to ask questions, one option is that the island is rich in natural resources. Inland volcano, volcano ash formation does not stop, let the outbreak of volcano ash and ice cover each other, forming a cake like level. Then the people on the ecological environment on the island of destruction, a plant on the island to do various purposes (Title). On the island before the natives cant write, so there is no written records of volcano, now only rely on C14 to guess, supplemented by the soil layer to identify. 3. biological asexual asexual first paragraph asexual and sexual classification. Asexual reproduction is common in single celled organisms and invertebrates. The first one is single cell division, a split into two, what seems to be called budding, the most detailed discussion, we have to have a good look. The second is a kind of yeast should be budding. (there is no problem) third