异构化装置开车进油时,循环氢纯度越高越好。()
参考答案:错
一中年患者十二指肠溃疡大出血,7小时内已输血100ml,BP75/50mmHg,脉搏140次/分,肠鸣音活跃,此时应()
A.输血,加静滴甲氧胺
B.输血,口服去甲肾上腺素10mg
C.输血,冰水灌洗胃腔
D.输血,插三腔二囊管压迫止血
E.输血,急诊胃次全切除手术
The exact year Angela and her family spent together in China was 2008.
A.when
B.where
C.why
D.which