【判断题】According to the principles or the six key points proposed by Harvard Business School to judge the quality of an elevator pitch, it may be inferred that the example given in lesson five could be a def...
【单选题】Which of the following does the author view as the key points of Paragraph 6? Ⅰ. Imperfect as it is, technology has not failed us. Ⅱ. The wasteful use of technology in transport is an example to chang...