单项选择题
[听力原文] M: What happened to you You are so late. W: Oh, I am ,so sorry. I got up at seven o’clock.
A.Her car broke down halfway. B.Her car was hit by others. C.She got up late. D.She met a good frien
A.nobody was interested B.there were no scientific instrument and equipments needed C.Einstein did not have his own laboratory D.it was no use testing them
A.Virginia. B.Yonkers. C.Louis Armstrong. D.Louisian.