与药物从肾排泄的快慢无关的是（）
A.肾小球滤过功能
B.尿液pH值
C.肾小管分泌功能
D.药物生物利用度
E.合并用药
参考答案：B
在一次竞赛中共有20道题，每一题答对得10分，答错或不答扣5分，小明得分要超过90分，他至少答对（ ）道题。
My dictionary . I have looked for everywhere but still it. [ ]
A. has lost; don't find
B. is missing; don't find
C. is losing; haven't found
D. is missing; haven't found
