下列哪项不属于卵泡生长必经阶段()
A.原始细胞
B.窦前卵泡
C.窦状卵泡
D.窦后卵泡
E.成熟卵泡
参考答案:D
I don't think it easy, even if we work hard, the South Korea and the North Korea to sit down
to talk at present.[ ]
A. persuaded
B. persuade
C. to persuade
D. persuading
调度命令自()起重新编号,()更换日期
A、18时;零时
B、零时;18时
C、零时;零时