Bill was a very good pilot（飞行员）.He had been in the air force for several years, and had been very successful. Now he was sent to a small field in the middle of a forest, 36 planes were a
将30 mL，5 mol / L NaOH溶液加水稀释到500 mL，稀释后溶液中NaOH的物质的量浓度为
“十一五”期间将投入140亿元作为职业教育专项资金，其中40亿元用于建立职业院校贫困生救助体系，同时明确投向原则为向西部倾斜。中央财政建立职
辨析题：只有实行行政问责制，才能提高政府依法行政的水平。
19．毛角蛋白Ⅱ型中间丝（KIFⅡ）基因与绒山羊的羊绒质量密切相关。获得转KIFⅡ基因的高绒质绒山羊的简单流程如图。下列说法错误的是
2．下列各项中没有语病的一项是 （ ） A．近年来先后实施的全面免除农业税、免收农村中小学生的学杂费，高度说明了中央政府对农民问题的
I thought it would be rainly that day, but it ___ to be fine. A. turned up B. turned out C. turned down D. turned back
如图所示， A．B为两个靠得很近的小球，均可视为质点，静止放于倾角为θ的光滑斜面上，斜面足够长，在释放B 球的同时，将A球以初速度水平抛出，当
