It passes through the N atom and through the center of the equilateral triangle.它通过N原子及三个H原子组成的等边三角形的中心.Use your protractor to construct an equilateral triangle.用量角器作一个等边三角形。An equilateral triangle cannot be dissected in...
Classically, overweight people underestimate the volume of food that they consume.一般来说，超重的人往往低估自己摄入食物的量。Earthworms consume large amounts of soil, and produce a rich humus, perfect in texture.蚯蚓吃下大量土壤，排出肥力丰富、物理结构理想的腐殖质。So...