微小病变性肾炎病理特征是
A.近曲小管上皮细胞中含脂滴B.系膜细胞及系膜基质弥漫增生C.毛细血管壁广泛增厚呈现双轨征D.基底膜弥漫增厚E.毛细血管节段性硬化
参考答案:A
小宇乘坐的汽车正以12m/s的车速驶向一高山崖壁,驾驶员鸣笛2s后听到回声.试问驾驶员开始鸣笛处到大山崖壁的距离是多远?(声音在空气中的传播速度是340m/s)
Gradually, you will realize that the things that matter are __________ that can’t be bought with money.
A.these
B.those
C.ones
D.some