【单选题】Neither Tom nor John ______ a bike of ______ own.
【单选题】I often have conversation with John over _____ phone, but keep in touch with Tom by writing _____ letters.
【单选题】用单色光观察牛顿环,测得某一亮环直径为3mm,在它外边第5个亮环直径为4.6mm,用平凸透镜的凸面曲率半径为1.0m,则此单色光的波长为
【单选题】Tom: How long have you worked in this department? John:______.
A.
The atmosphere in this department is free.
C.
Just about six months.
【简答题】在用位示图管理磁盘存储空间时,位示图的尺寸由磁盘的______决定。
【单选题】用单色光观察牛顿环,测得某一亮环的直径为3mm,在它外边第5 个亮环的直径为4.6mm,所用平凸透镜的凸面曲率半径为1.03m,则单色光的波长为多大?()
【单选题】用单色光观察牛顿环,测得某一亮环直径为3mm,在它外边第5个亮环直径为4.6mm,用平凸透镜的凸面曲率半径为1.0m,则此单色光的波长为