Fertilizer, natural substance or mixture is used to( )soil so as to promote plant growth. 问题1选项 A. enact B. enlarge C. enclose D. enrich 相关知识点: 试题来源: 解析 [答案]D [解析]句意:肥料、自然物质或混合物被用来使土地肥沃,以促进植物生长。 考查动词辨析。Enact 通过(法律),扮演...
material,matter,substance5. Steel is a mixture of iron and other6. That is aOf_(principle7. Tell us theof your activity.8. This suit is made of very good 相关知识点: 试题来源: 解析 5. substances 6.matter 7.substance 8.material ...
题目The term "alloy" refers to a substance that is ___. A. A mixture of two or more metals B. A pure metal C. A non-metallic element D. A mixture of a metal and a non-metallic E. lement 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
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a但前提是如果有时间,精力好好培训的话, But the premise is if has the time, the energy trains well speech,[translate] a对不起妹儿 正在翻译,请等待...[translate] aFertilizer, natural substance or mixture is used to ___ soil so as to promote plant growth. 肥料、自然物质或者混合物用于对__...
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a土壤由空气,水,有机质,矿物质组成.降水影响土壤的含水程度;热量也可以影响土壤含水.合适的温度有利于有机质增加.气候对土壤直接间接的影响是多方面的,因此各个地方的土壤就不一样了. The soil by the air, the water, the organic matter, the mineral substance is composed. The precipitation affects the...
Heterogeneous Mixtures- the (two or more) substances that form the mixture arenotevenly distributed throughout the mixture, e.g. oil and water. Solutions- special type ofhomogeneousmixtures in which one substance (called the 'solute') is dissolved in another substance (called the 'solvent'), ...
(a) Air is a mixture of ………. . (b) During the monsoons, ………. is swirled through drinking water. (c) ………. is a sublimating substance. Solution (a) Air is a mixture ofnumber of gases. (b) During the monsoons,alum crystalis swirled through drinking water. (c)Camphor ...
Chemical substances can be solids, liquids, gases, or plasma. Pure chemical compounds are substances composed of bonded molecules or ions. For example, pure water is s chemical substance since it always has the same ratio of hydrogen to oxygen. However, seawater is a mixture since it contains...