移动顶焦度测量手轮，使顶焦度计光系统中的（）前后移动。
A、滤色片
B、光源
C、物镜
D、移动分划板
参考答案：D
John Black, a new client, who has been a chargeable person for a number of years, has asked you to explain the following, with reference to income tax.
(a) The rules applicable in determining the amount of preliminary tax to be paid for the tax year 2008. (3 marks)
1分子10碳饱和脂肪酸经β-氧化循环过程分解为5分子乙酰CoA，此时可净生成多少分子ATP（）
A.15
B.20
C.18
D.80
E.79
