目前我国预防地方性碘缺乏病的最主要措施是（）
A.增加食物中碘的比例
B.供给碘化食盐
C.多吃海带
D.提倡用碘油
E.改善居住环境
参考答案：B
— Watch out! The petrol __.
—Oh, my God. We have to find a service station soon enough. [ ]
A. runs out
B. has run out
C. is running out
D. has been run out
肾结核单纯使用抗结核药物指征是
A．静脉肾盂造影一侧不显影B．静脉肾盂造影一侧广泛破坏C．肾盂造影显示病变轻D．一侧肾钙化E．肾结核并结核性挛缩膀胱
