确诊的主要依据是
A.宫腔镜检查
B. * * 后穹窿分泌物涂片
C. * * 镜检查
D.B超检查
E.分段刮宫活组织检查
参考答案:E
一个水箱长、宽都是20厘米,现在水箱中装有5.5升水,如果放入一块铁块,使铁块完全浸没在水中,这时水深20厘米(此时水没有溢出水箱),问这块铁块的体积是多少立方厘米?
_____ a cat. _____ name's Mimi. [ ]
A. It's, It's
B. Its, It's
C. It's, Its
D. Its, Its