苋菜
A.常山B.薄荷C.茯苓D.鳖甲E.首乌上述药物不宜与下列那些食物同用
参考答案:D
We have _________ some organizations to help the poor students in the western areas of China.
A.taken up
B.put up
C.picked up
D.set up
试述左右主支气管的解剖学特点及其临床意义。