【简答题】What are the Five P illars of Islam?
【判断题】为了防止高频电磁场的影响,应采用导磁良好的金属材料作屏蔽层。
【单选题】Listen to five short conversations and choose the best answer to the question you hear. (p.125) 1 Q: What does the man think of today’s newspapers? [音频]
A.
They have fewer pages.
B.
They are disappointing.
C.
They are worthy of reading.
D.
They report important issues.
【单选题】在Windows 7中,要彻底删除数据文件,快捷的的操作是( )
C.
在“资源管理器”窗口中,按住“Shift”键再进行“删除”操作
【单选题】电源为无限大容量时,外电路所引起的功率改变对电源微不足道,电源的 和 保持不变而恒定。
【单选题】在Windows 7资源管理器窗口,复制的操作是右键单击文件,从弹出的快捷菜单中选择【复制】,再右键单击目标文件夹或磁盘,从弹出的快捷菜单中选择( )。