Menarche at earlier age was associated with a higher BMD ( P & lt; 0.05 ).月经初潮早的女性BMD值比月经初潮晚的女性高 ( P & lt; 0.05 ).Delayed menarche, dysmenorrheal. Can conceive, delivered mostly girls.多有月经初潮偏迟, 痛经史.曾经生育的大多是女孩儿.The associ...
许多实验都曾得出了土壤的可侵蚀性.Numerous experiments have been performed to establish the erodibility of the soil.侵蚀性降雨, 是指能够引起土壤侵蚀的降雨.The erosive rain is defined as rain, which can cause soil erosion.目的探讨彩色多普勒血流显像(CDFI)对侵蚀性葡萄胎患者的应用价值....