第19题:[单选题] Radar makes the most accurate determination of the ______. A. direction of target B. distance of target C. size of a target D. shape of a target 参考答案:B 【参考译文】雷达使物标距离的测定最为精确。 【解 析】distance of target物标距离
第23题: [单项选择]A. The man is a heavy smoker. B. The man is rather short. C. The man drives a car. D. The man works with a computer. 参考答案:B 答案解析:[听力原文] Which of the following can not be concluded from the conversion