shelf life
第1题:
A.linetiming
B.looptiming
C.internaltiming
D.throughtiming
E.externaltiming
第2题:
39.
A.study
B.family
C.education
D.life
第3题:
第4题:
A. line timing
B. loop timing
C. internal timing
D. through timing
E. external timing
第5题:
第6题:
以下关于VDB函数的语法正确的是()。
A.VDB(cost,salvage,life,period,factor)
B.VDB(cost,salvage,life,period,month)
C.VDB(cost,salvage,life,per)
D.VDB(cost,salvage,life,start-period,end-period,factor,no-switch)