【简答题】I am late for work today because of the t_____ jam.
【简答题】I am late for work today because of the t_____ jam.
【简答题】A.Princeton. B.Yale. C.Harvard. D.Stanford.
【判断题】As of 2017, five U.S. Presidents have graduated from Yale University.
【单选题】I am late for _____ school.
【单选题】下列有关于玻尔模型的讨论,不正确的是( )
C.
玻尔模型中,电子圆周运动的向心力来源于静电作用
D.
电子从一个定态跃迁到另一个定态需要吸收一定频率的电磁波
【单选题】If I am late for class, the teacher be angry.
【单选题】Speaker A: Sorry, I am late for school. Speaker B: __________