采用成本分析法进行成本控制分析时,当实际成本低于标准成本为()。
A.不利差异
B.标准差异
C.有利差异
D.可控差异
参考答案:C
As _____ beautiful movie about pain, struggle, hope and love, Slumgod Millionaire swept the ceremony
with eight awards, including _____ prize for best pictures. [ ]
A. a; the
B. a; a
C. the ; a
D. the; the
生态系统中的能量流动伴随着___ __。