【简答题】Read the textbook excerpt. Then, choose the correct answers. 1. What is this text
describing?A. the
crew members needed for each part of a train B. the
differences between freight and passenger cars C...
【单选题】?Read the introduction below about a conference. ?Choose the best word to fill each gap from A, B, C or D on the opposite page. ?For each question 19-33, mark one letter (A, B, C or D). The CIO and Te...