入院后24h、手术前一天、手术（分娩）后3天每天测体：（）

A、2次

B、1次

C、4次

D、q4h

I saw a woman running toward me in the dark.  Before I could recognize who she was,she had run

back in the  direction_____ she had come.   [ ]

A. of which        

B. by which        

C.  in which          

D. from which