Question 1
The passage suggests that in conducting this medical study, researchers
A. drew few conclusions beforehand on the indeterminate outcome of their scientific research
B. discovered associations they had not been looking for
C. had little interest in calcium's affect on other organs apart from the kidneys
D. neglected researching how the intake of calcium can reduce urinary excretion of oxalate
E. overrated the affects of animal protein on the risk of stone formation.
我的答案： 无