肛提肌()。
A.形成尿生殖膈
B.构成坐骨直肠窝的底
C.形成盆膈的一部分
D.位于盆膈的上方
E.构成坐骨直肠窝的外侧壁
参考答案:C
一 I hear Liu Mei won the first prize in the national English competition.
一 Pretty good. I'm glad that her efforts at last _____. [ ]
A. worked out
B. got back
C. paid off
D. turned out
“一切以条件、时间和地点为转移”的观点属于机械的条件决定论。 ( )