电子合同在企业的实际商务运作过程中的作用？
参考答案：
能够实现传统合同在商务过程中的全部作用。合同的意义和作用没有发生改变，但其形式却发生了极大的变化
如图所示，一束激光从O点由空气射入厚度均匀的介质，经下表面反射后，从上面的A点射出。已知入射角为i，A与O相距l，介质的折射率为n，试求介质的厚度d。
“It is declared that this shipment does not contain any wood packing materials，”与这句话意思最接近的是______
A．We declare that no wood packing material was used in this shipment.B．No declaration wan made whether wood packing materials had been used or not.C．If you don’t make any declaration. we will not use any wood packing material.D．We will not use any wood packing material since you have provided us a declaration of no-wood packing material.
