Einstein is known _________ a great scientist. [ ]
A. of
B. for
C. as
D. to
答案:C
公司留存收益筹资的资金成本为( )。
A.5.5%
B.12.2%
C.13.61%
D.19.3%
后纵韧带骨化症首选的检查方法是()。
A.X线平片
B.MRI
C.关节镜检查术
D.关节穿刺术
E.CT检查