进行性多灶性白质脑病的病变最明显的部位是()
A.小脑白质
B.脑桥白质
C.中脑白质
D.脊髓白质
E.皮质下白质
参考答案:E
左开本
The user must interact with the ______ in order to accomplish task.
A.printer B.memory C.CPU D.operating system