为了避免诱发下肢放射痛，腰椎间盘突出症病人直腿抬高一般不能超过（）
A.60°
B.50°
C.40°
D.30°
E.20°
参考答案：A
某肝硬化患者，上消化道出血伴高血压、冠心病。下列止血措施中最不恰当的是（）。
A.三腔二囊管压迫
B.去甲肾上腺素胃管滴注
C.垂体后叶素静脉滴注
D.6-氨基己酸静脉滴注
E.冰生理盐水洗胃
______ it is hoped that college students should be equipped with the ability to take a good set of notes, this is not always the case.
A．When
B．While
C．As
D．Unless
