下列方程式中（）是马克思的货币必要量公式。
A、MV=PT
B、P=MV/T
C、M=PQ/V
D、M=KPY
参考答案：C
I will never forget the years _____I lived in the country with the farmers, ______has a great effect on
my life. [ ]
A. that, that
B. which, which
C.which, when
D. when. which
股骨颈骨折固定方法应保持在（）。
A.外旋位，外展50°
B.外旋位，外展40°
C.中立位，内收10°
D.中立位，外展30°
E.内旋位，外展30°
