My cousin had an accident _______ a cold winter morning. [ ]
A. in
B. at
C. on
D. for
答案:C
下列哪种胎方位最多见()
A.臀先露
B.足先露
C.膝先露
D.枕先露
E.面先露
--What’s that? --________
A Watch B.A Watch C.Is a match D.Yes,it is