女性第二性征发育最早的是()。 A.阴毛 B.腋毛 C. * * D.月经出潮 E.以上 发布时间:2017-05-12 02:40 │ 来源:www.tikuol.com 题型:单项选择题 问题: 女性第二性征发育最早的是()。A.阴毛B.腋毛C. * * D.月经出潮E.以上都不是
题型:单项选择题 When the old man _____to walk back to his house,the sun _____ itself behind the mountain. [ ]A. was starting; hid B. had started; had already hidden C. had started; was hiding D. started; had already hidden 查看答案
题型:单项选择题 下列哪项是纤维素样坏死的实质?()A.基质中透明质酸的大量储积B.胶原纤维增粗并相互融合所致C.基质中PAS阳性的黏多糖增多所致D.间质胶原纤维及小血管壁变性E.小血管基底膜下结合黏多糖蛋白质的沉积 查看答案