国开(山西开放大学)26秋《理工英语1》单元自测4 单元自测4(10分) 一、选择填空:阅读下面的对话或句子,从A、B、C三个选项中选出一个能填入空白处的最佳选项。 1.—- ______________________________ —-Yeah. It is the only professional museum about the railway system in China. A.Do you know the China Railway Museum B.Excuse me, sir. Where …