麻黄碱是从哪种原植物中提取的（）。
A.罂粟
B.大麻
C.麻黄草
D.古柯
参考答案：C
Leave your key with your neighbor you lock yourself out one day.
A． as long as
B． even though
C． in case
D． as if
易造成小脑幕裂孔疝的疾病是（）
A．脑膜膨出
B．后颅凹肿瘤
C．颞部巨大硬膜外血肿
D．脑挫伤裂伤
E．颅内动脉瘤
