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根据《水土保持综合治理效益计算方法》（GB/T15774—1995），调水保土效益主要指保水保土，包括（）。
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能借以实现广告主与广告对象之间信息传播的物质或工具，或者说凡是能刊载广告作品，并实现广告主与广告对象之间信息沟通的物质均可称为()。
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国际单位制基本量主要包括长度、质量、时间、物质的量。（）
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From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first 1 , they were like newborn children, unable to use this 2 tool. Yet once language developed, the possibilities for human kind’s future 3 and cultural growth increased. Many linguists believe that evolution is 4 for our ability to produce and use language. They 5 that our highly evolved brain provides us 6 an innate language ability not found in lower 7 . Proponents of this innateness theory say that our 8 for language is inborn, but that language itself develops gradually, 9 a function of the growth of the brain during childhood. Therefore there are critical 10 times for language development. Current 11 of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. 12 , more and more schools are discovering that foreign languages are best taught in 13 grades. Young children often can learn several languages by being 14 to them, while adults have a much harder time learning another language once the 15 of their first language have become firmly fixed. 16 some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been 17 from other human beings do not possess language. This demonstrates that 18 with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language 19 than any innate capacities. These theorists view language as imitative, learned behavior. 20 , children learn language from their parents by imitating them. Parents gradually shape their child's language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones. 请在1处填上正确答案（） 请在2处填上正确答案（） 请在3处填上正确答案（） 请在4处填上正确答案（） 请在5处填上正确答案（） 请在6处填上正确答案（） 请在7处填上正确答案（） 请在8处填上正确答案（） 请在9处填上正确答案（） 请在10处填上正确答案（） 请在11处填上正确答案（） 请在12处填上正确答案（） 请在13处填上正确答案（） 请在14处填上正确答案（） 请在15处填上正确答案（） 请在16处填上正确答案（） 请在17处填上正确答案（） 请在18处填上正确答案（） 请在19处填上正确答案（） 请在20处填上正确答案（）
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有关强直性脊柱炎的发病正确的是（）
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鸟类和两栖类都是通过膀胱以尿素形式排出代谢废物。（）
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泪管开口于：（）
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技术分析指标方法与其他技术分析法的最大区别是（ ）。
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井下电雷管如何分类？
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最擅长海上贸易的商帮是宁波商帮