从中药麻黄中提取的生物碱--麻黄碱,具有止咳平喘功效,其结构简式为它可能具有的化学性质为 [ ]
A.加成反应
B.酯化反应
C.水解反应
D.中和反应
AB
The American team will arrive in Paris to play a friendly match with a team that _____ French and German selected players.
A.consists of
B.is formed of
C.is consisted of
D.is made of
急性硬膜外血肿,最具特征性的表现是
A.中间清醒期B.两侧瞳孔不对称C.颅骨骨折线跨过脑膜中动脉沟D.进行性意识障碍E.对侧肢体瘫痪或锥体束征阳性