【判断题】根据英文句子判断下列中文翻译是否正确。 Do you have virus protection software on your PC? 你的电脑没有防毒软件吗?
【判断题】交流供电的传感器可以采用两线制传输方式。
【简答题】We eat, we are lucky, our faces are shining with fat, but we don't know the pleasure of being hungry any more.
【简答题】8 2 3 +2 5 - 1 2 + π 0 -lne =______.
【判断题】将配体看作带有负电荷的点电荷,配体与中心离子之间的作用力为静电作用力,并不形成共价键;