尿的浓缩最主要的部位在
A.近曲小管
B.远曲小管和集合管
C.髓袢降支
D.近曲小管和远曲小管
E.髓袢升支
参考答案:B
运输工具的燃料消耗量与运行阻力有关,阻力又取决于()。
A.运行距离
B.运行速度
C.运行线路
D.运行设备
We have dresses of various styles and patterns on sale and you may take ______ suits you best.
A.whatever
B.whichever
C.no matter what
D.no matter which