By the time I ____________, I realized that I had left my umbrella in the shop.

A．arrived at home

B．reach home

C．got to home

D．arrived home

女性肝硬化病人，49岁，因1h前呕鲜红色血约800ml而急诊入院，血压18/8kPa(135/60mmHg)，脉搏124次/分。护士接诊后，首要准备的是

A．去枕平卧，头偏向一侧

B．观察生命体征及神志变化

C．建立静脉通路

D．备好三腔二囊管

E．给予流质饮食