原发性肝癌肝内播散最主要的途径是()。
A.经淋巴管
B.经肝静脉
C.直接侵犯
D.经肝动脉
E.经门静脉
参考答案:E
Mr White ____ the newspaper while his daughter ____TV. [ ]
A. has read; was watching
B. was reading; watched
C. was reading; was watching
D. reading; watched
在刚装好Windows98系统的桌面上,没有做任何特殊的设置,下列不可以打开“我的电脑”窗口的操作是()。
A.在“我的电脑”图标上双击鼠标左键
B.在“我的电脑”图标上单击鼠标右键
C.在“我的电脑”图标上单击鼠标左键
D.在“资源管理器”中选取“我的电脑”