股骨粗隆间骨折反粗隆间型,其骨折近端移位方向是()。
A.外展、内旋
B.外展、外旋
C.内收、内旋
D.内收、外旋
E.以上都不对
参考答案:B
After the flood, there were hundreds of homeless people that needed _____.
A.rescued
B.being rescued
C.to rescue
D.to be rescued
高碘酸钾分光光度法测定水中锰时,为什么要选择在中性或弱碱性条件下显色测定?