【简答题】第一部手机是由谁发明的? A,Douglas B,Bell C,Maxwell D,Copper
【判断题】Ad hoc网络中,无线通信有效范围内的节点之间通信时也可以采用多跳转发的方式。
【简答题】B--(40) Now use em- , en- , or ex- to complete the words in the sentences below. Check your answers with a partner. 2 Thirty minutes after the fire started, the building was completely_______veloped i...
【简答题】4 描边和填充选区 实训1:使用“描边”命令制作请柬 实训2:使用“自定义图案”与“填充”命令为模特换装 实训3:使用渐变工具制作彩虹风景画 实训4:使用油漆桶工具填充花朵颜色
【单选题】To reduce power consumption of your computer, the following methods are recommended by the author except ______.
A.
setting the computer to go to sleep after periods of inactivity
B.
shutting it down at night when power is most expensive
C.
setting different parts of the computer to sleep at different times
D.
setting the hard drive to sleep after 30 minutes of inactivity