听力原文:W: John, can you tell me what in the book interested you most? M: No, well, nothing specific, but I like it overall. Q: What did the nm think of the book? (17)
【判断题】A simple design for heat transfer is found in a double-pipe heat exchanger. A double-pipe exchanger has a pipe inside a pipe. The outside pipe provides the tube, and the inner pipe provides the shell.
【简答题】A design for heat transfer is found in a heat exchanger. A double-pipe exchanger has a pipe inside a pipe. The outside pipe provides the , and the inner pipe provides the .