【判断题】目前我国的电子商务发展的重要基础是网络借贷
【判断题】t = 0接入系统的信号称为因果信号。若 ,则f(t)是因果信号?
【单选题】How many PPM of the oily water can be pumped out within 12 miles along the China coast line? ______.
【判断题】目前我国的电子商务发展的重要基础是网络借贷
【单选题】Q: How did the second speaker deal with oily waste?