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问题 选择题

科学合理地使用燃料，可有效地防止环境污染．下列关于燃料与燃烧的说法错误的是（　　）

A．汽油中加入适量的乙醇可减少汽车尾气的污染

B．把煤加工成蜂窝煤可使之燃烧更加充分

C．天然气是比煤、石油更加清洁的化石燃料

D．石油分解后可得到汽油．煤油．柴油等一系列产品

答案

答案：D

选择题

下列措施符合“生态平衡”理念的是（　　）

①将垃圾分类处理  

②禁止尾气排放不达标的机动车上路  

③提倡使用一次性筷子  

④大力提倡植树造林．

A．①②③

B．①②④

C．①③④

D．②③④
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单项选择题

Geography is the study of the relationship between people and the land. Geographers compare and contrast various places on the earth. But they also (51) beyond the individual places and consider the earth as a whole. The English word geography means "to describe the earth. " (52) geography books focus on a small area like a town or city. Others deal with a state, a region, a nation, or an (53) continent. Many geography books deal with the whole earth. Another (54) to divide the study of geography is to distinguish between physical geography and cultural geography. The former focuses on the natural world; the (55) starts with human beings and studies how human beings and their environment act (56) each other. But when geography is considered as a single subject, (57) branch can neglect the other. A geographer might be described as one who observes, records, and explains the (58) between places. If all places (59) alike, there would be little need for geographers. We know, however, that no two places are exactly the same. Geography, (60) is a point of view, a special way of looking at place.

58().

A.exceptions 

B.sameness 

C.differences 

D.divisions
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