植物根系能吸收土壤微生物产生的特定维生素，因此，在富含微生植物群和动物群的天然土壤中生长的植物含有更多营养素。
Plant roots are able to absorb certain vitamins produced by soil microorganisms, thus suggesting that plants grown in healthy soil, full of microflora and microfauna, are more nutritious.
在“赤色黎明”中，一群高中生对入侵的苏联及其盟国进行游击抵抗。
In “Red Dawn, ” a group of high schoolers form a guerrilla resistance against an invading Soviet Union and its allies.
想象自己是一个轻盈敏捷的高中生，正在和一群20多岁30多岁的大人一起跑步。
Picture yourself as a fit agile senior running along with 20 -, 30-year olds.
电影讲述了一群人在安第斯山脉零度以下的环境中生存下来的真实故事。
The film tells the true story of a group who survived in the Andes in sub-zero temperatures.
概要的总结了东北区中生代地层中古生物群，以及它们在岩石地层单位中的分布，借以说明岩石地层的时代，为地层多重划分对比提供了依据。
The Mesozoic biota and their distribution in lithostratigraphic units in northeastern China are summed up to suggest the age of the units and to be the basin for multiple classification of strata.
现在，一群枪手必须捍卫自己的家是否有人会在牛仔与恐龙的战斗中生存下来。
Now, a group of gunslingers must defend their home if anyone is going to survive in a battle of cowboys versus dinosaurs.
方法按照分层随机整群抽样的方法，抽取蚌埠市10所中学60个班级的3 251名高中生为研究对象，获有效问卷3 044份。
Methods A cluster stratified sampling method was used to choose 3 251 students from 60 classes in 10 middle schools, among which, 3 044 questionnaires were available.
成矿物质及介质来源于太华群及下部地层、花岗岩浆和中生代湖盆。
The ore forming material and media came from the strata of the Taihua Group and its lower strata, the granite magma and Mesozoic lake basin.
山东招远金矿集中区金矿床的围岩为新太古代胶东岩群变质岩和中生代花岗岩。
The wall rocks of gold deposits located in Zhaoyuan gold mineralization area were rooted in metamorphic rocks in Jiaodong rock group in Archaean era and granites in Mesozoic era.
研究区内出露的地层以太古界——元古界胶南群的各类变质岩和中生界白垩系各类碎屑岩和火山岩为主。
In the research area, the primary surface formation are the Archeozoic - Proterozoic Jiaonan group there are kinds of Clastic rocks and Volcanic rocks in the metamorphite and Mesozoic Cretaceous.
植物根系能吸收土壤微生物产生的特定维生素，因此，在富含微生植物群和动物群的天然土壤中生长的植物含有更多营养素。
The roots of plants draw specific nutrients from the soil, and as a result, plants which grow in soil rich in microbes and animals contain more nutrients.
方法整群抽取武汉市某中学初一、初二学生212名，用自编初中生生殖健康问卷进行调查。
Methods Stratified cluster sampling was used, survey was carried out by self-made scale among 212 students in Wuhan.
方法：采用分层整群抽样方法，对武汉市某中学212名初一、二学生进行自编的初中生性知识性态度问卷调查。
Methods:A stratified cluster sample of 212 junior middle school students was investigated with a self-made questionnaire.
藻类和苔藓植物是荒漠植被演替过程中常见的两类先锋植物，同时也是生物结皮中生物量最大的2个类群。
Algae and mosses are not only two common pioneer plants in the process of vegetation succession but also two groups with the highest biomass in the biological soil crust.
藻类和苔藓植物是荒漠植被演替过程中常见的两类先锋植物，同时也是生物结皮中生物量最大的2个类群。
Algae and mosses are not only two common pioneer plants in the process of vegetation succession but also two groups with the highest biomass in the biological soil crust.
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