【判断题】Because of higher quality images they can produce, letter-quality printers will replace dot-matrix printers in the near future.
【判断题】Ink-jet printers work as dot-matrix printers, so they can print on multiple-part carbon forms.
【简答题】High-quality dot-matrix printers have print heads with as many as 24 ______.
【判断题】Dot-matrix printers use little print hammers like the heads of pins rather than hammer like mechanism.
【简答题】We bought these laser jet printers to replace our old dot matrix ones. (as)We bought these laser jet printers _______________________________our old ones.
【单选题】Laser, ink jet, and dot matrix are types of ______.
【简答题】1 %葡萄糖溶液(凝固点为Td)与0.1 %白酒溶液(凝固点为Tf)的凝固点的关系是( )。 ATd>Tf BTd=Tf CTd0 D反应过程中,随产物的生成,系统的熵值增大