宫颈糜烂表现为
A.宫颈的鳞状上皮脱落,由宫颈管单层柱状上皮覆盖B.宫颈溃疡C.宫颈上皮缺如D.宫颈先天发育不良E.宫颈裂伤外翻
参考答案:A
地壳中含量最多的金属元素是 ____ ,目前年开采量最多的金属元素是 ____ ,人类最早冶炼的金属是 ____ ,人体中含量最多的金属元素是 ____ .
---People should use public transport instead of their own private cars.
--- _______.The roads are too crowd as it is.
A.All right.
B.Exactly.
C.Go ahead.
D.Fine.