《草笠舞》表现了一群少女戴着新编的草笠玩耍在劳动归来的路上，比较深刻的揭示了海南特定 发布时间：2017-10-01 20:15 │ 来源：www.tikuol.com 题型：单项选择题 问题： 《草笠舞》表现了一群少女戴着新编的草笠玩耍在劳动归来的路上，比较深刻的揭示了海南特定地域文化，这个作品主要取材于（）少数民族的生活？A.黎族B.瑶族C.壮族
题型：单项选择题 下列关于“视图(View)”的条目中，不正确的是( )。A．视图可以建立在一个或多个基本表上B．视图可以建立在一个或多个视图上C．使用视图可以简化查询语句的编写D．使用视图可以加快查询语句的执行速度 查看答案
题型：单项选择题 Lichens may grow on the bark of a tree in a steaming tropical rain forest, on the bricks of big city buildings, on rocks in hot springs, on wind-swept mountaintops, and in the driest desserts. In the arctic, they provide the principal food for caribou, and they are one of the few plants that grow in Antarctica. They are pioneers, appearing in barren rocky areas and starting the formation of soil in which mosses, then ferns, and then other plants can take root. Lichens are a partnership of two plants — fungi and algae. The lichen body is made up of a network of fungal strands. In the upper layers of these grow groups of algae. The two organisms live together to the benefit of both, a relationship known as symbiosis. The fungi provide support, absorb water, and shelter the tender algae from direct sunlight. The algae carry on photosynthesis and provide the fungi with food. The algae can live independently and are recognizable as a species that grows alone. The fungi, on the other hand, cannot live apart from their partners. They can be placed in known classes of fungi but are unlike any species that lives independently. So definite are the form, color, and characteristics of these double organisms that for hundreds of years, they were classified as one. More than 15,000 "species" were named. If these organisms are classified as separate species, it is difficult to fit them into the existing system of classification. But if they are classified separately, these species of fungi seem rather strange. Lichens are a splendid example of the difficulties faced by taxonomists in classifying species.The word "barren" underlined in Paragraph 1 most probably means _______ .A．lifelessB．frigidC．hardD．uncovered 查看答案