Alzheimer病脑血流灌注和代谢减低最常见的部位是（）
A.额叶
B.脑干
C.中脑
D.颞顶叶
E.小脑
参考答案：D
69. With the guide leading the way, the visitors were able to travel through the forest not by air but _____ foot.
A．by
B．on
C．in
D．with
下列刑事处罚中属于主刑的是( )。
A．管制
B．罚金
C．没收财产
D．剥夺政治权利
