第19题: [单项选择]Questions 19 to 22 are based on the conversation you have just heard.A. How to care for precious metal. B. A standard unit for measuring weight. C. The value of precious metal. D. Using the metric system. 参考答案:B 答案解析:[解析] 19-22 M: Dr. Thomas This is Keet Bradley from the Daily News. (19) I’d like to ask you s
第32题: [单项选择]The bosun has thrown the liferaft into the water before abandoning the vessel. The operating cord(). A. serves as a sea painter B. detaches from the liferaft automatically C. is used to rig the boarding ladder D. is cut immediately as it is of no further use 参考答案:A