下列哪个组织被完全切断后可致肛门失禁( )
A.肛提肌B.联合纵肌C.肛门内括约肌D.肛管直肠环E.肛门外括约肌皮下部
参考答案:D
Although his experiments were designed to support the ideas the influence of environment upon plants, Mendel found that many characteristics were passed on from one generation to the next.
A.concerning
B.attaching to
C.involving in
D.concerning with
《灵枢·本神》里说“因志而存变谓之()”
A.志
B.魂
C.魄
D.思