生产质量和服务水平的高低主要取决于（）。
A.职业理想
B.职业技能
C.职业选择
D.职业道德素质
参考答案：B, D
上颌第二恒磨牙萌出的时间是（）
A.2～3岁
B.6～7岁
C.5～6岁
D.12～13岁
E.18～21岁
— Sally got a high position in our company.
— Really? _____ made her stand out from so many people?[ ]
A. What it was that
B. That was it what
C. What was it that
D. That it was what
