Yesterday when I was playing in Century Park, I came across Mr Li, our physics teacher. The underlined

part means ______. [ ]

A. met

B. happened to meet

C. saw

D. talked with

“将肢体置于可下垂的位置上并释放时，肢体只能短暂地抵抗重力，旋即落下”以上描述可判断为（）。

A.肌张力轻度弛缓

B.肌张力中度弛缓

C.肌张力重度弛缓

D.肌张力正常

E.肌张力亢进