【判断题】Aero效果是Windows 7中的高级视觉效果功能,其特点是具有透明的磨砂玻璃效果、精致的窗口动画和新窗口颜色。( )
【简答题】After she finished __________(write) the article, she went to the post office to send it away.
【简答题】设f(x,y)为连续函数,且对任意平面曲线C,都有 ,试证f(x,y)=0
【单选题】She went to the post office to mail a ______.
【简答题】设f(x)为连续函数,且对一切A>0, 收敛,证明:对任意b>a>0有
【单选题】She went to the post office to mail a ______.
【判断题】两个阻抗并联的电路的总阻抗为 Z=1/Z1+1/Z2
【单选题】Windows 7中的 高级视觉效果的特点是:具有透明的磨砂玻璃效果、精致的窗口动画和新窗口颜色。
【简答题】After she _____ (write) the letter, she went to the post office.