The nurse is teaching a female client with osteoporosis about her prescribed diet. Which of the following foods is the best source of calcium

A. 1 cup of low-fat yogurt.
B. 1 cup of skim milk.
C. 1 oz of cheddar cheese.
D. 1 cup of ice cream.

设区的市的人大常委会有权任免（）。

A、副市长

B、市财政局长

C、市教委主任

D、市法院副院长