病人患强直性脊椎炎，服用吲哚美辛治疗，现出现恶心、腹痛、头晕、黑便，诊断为消化道出血，应给予

A．氢氧化铝

B．维生素K

C．铁剂

D．维生素C

E．停用吲哚美辛，加服西咪替丁

No one was sure exactly__________ he wanted

A．how was it that

B．how it was that

C．what was it that

D．what it was that