建国初期的土地改革是土地私有制向公有制转变的过渡阶段。在解放之初的苏南地区，由于地权形态和政治状况比较复杂，中国共产党采取了......

Parathyroid hormone(PTH) is well-known as the principal regulator of calcium homeostasis in the human body and controls ......