Extracts from H Co’s records for June are as follows.What is the total direct labour cost variance?( )
A: $1,536 (F)
B: $1,920 (F)
C: $1,920 (A)
D: $1,536 (A)
A: $1,536 (F)
B: $1,920 (F)
C: $1,920 (A)
D: $1,536 (A)
举一反三
- The total of direct materials, direct labour and direct expenses is known as: A: Production cost B: Overhead C: Prime cost D: Total cost
- 已知CaF2的Ksp=2.7×10-11,在pH =2.00时,其溶解度计算式为( )。 A: s=(Ksp)1/3; B: s=(Ksp/4)1/3; C: s=(Ksp•αF(H)2/4)1/3; D: s=(Ksp•αF(H)/4)1/3; E: s=(Ksp•αF(H)2/4)1/2; F: s=(Ksp)1/2; G: s=(Ksp/4)1/2。
- 800万像素的DC最高分辨率是( )。 A: 1 024×768 B: 3 264×2 448 C: 2 592×1 944 D: 2 048×1 536
- 设函数f(x)在x=1处可导,且lim h→0 f(1)-f(1+2h)/h=-1/2,则f'(1)=() A: -1/2 B: 1/2 C: 1/4 D: -1/4
- 输入正整数n,计算s = 1/1! + 1/2! + 1/3! + ……+ 1/n!的值。 #include int main { int j, k, n; double f, s; scanf("%d", &n); s= (1) ; for (k=1; k<=n; k++) { f= (2) ; for(j=1; (3) ; j++) f= (4) ; s=s+1/f; } printf("sum=%f ", s); return 0; }