—Mom,  I'm tired of working in this company. I want _____ job.

—I don't agree with you. It's not easy to get a job like this.[ ]

A. one            

B. a              

C. an          

D. another

对于转播彩色电视的体育场馆，国家标准规定照度标准是指哪一种面上的照度标准值?

A.水平面上

B.垂直面上

C.球面上

D.柱面上