struct point{ int x；int y；}；struct rect{ struct point pt1； struct point pt2；}；struct rect rt；struct rect *rp = &rt；则下面不正确的引用是（）。 A: rt.pt1.x B: *(rp).pt1.x C: rp->pt1.x D: rt->pt1.x

Using the notation Pt to designate this period's price level and Pt-1 to designate last period's price level, the formula for measuring the inflation rate from last period to this period is A: [(Pt - Pt - 1) / Pt] × 100. B: [(Pt -1 - Pt) / Pt - 1] × 100. C: [(Pt - Pt - 1) / Pt - 1] × 100. D: [(Pt -1 - Pt) / Pt] × 100.

下列程序运行后的输出结果是：_____#includestdio.hvoid fun( int *pa, int pb ) { int pt; pt = *pa, *pa = pb, pb = pt;}int main( ){ int x=1, y=2; fun(x, y); printf(%d, x==y); return 0;}

‏以下程序的输出结果是_____.‍‏#define PT 5.5‍‏#define S(x) PT*x*x‍‏void main()‍‏{ int a=1,b=2;‍‏ printf("%.1f\n",S(a+b));‍‏}‍ A: 12.0 B: 12.5 C: 9.5 D: 33.5

以下程序运行后，输出结果是 #define PT 5.5 #define S(x)PT* x * x main() {int a=1，b=2； printf("%4.lf\n",S(a+b); } A: 49.5 B: 9.5 C: 22.0 D: 45.0

下列电池中电动势E最大的是 A: Pt | H2 (2 pø) | H+ (a = 1) || H+ (a = 1) | H2 (pø) | Pt B: Pt | H2 (pø) | H+ (a = 1) || H+ (a = 0.5) | H2 (pø) | Pt C: Pt | H2 (pø) | H+ (a = 1) || H+ (a = 1) | H2 (pø) | Pt D: Pt | H2 (2 pø) | H+ (a = 1) || H+ (a = 0.5) | H2 (pø) | Pt

‎以下代码的输出是 ：​‎void swap( int *pa, int *pb ) { int pt; pt = *pa, *pa = *pb, *pb = *pa; } int main(void) { int x=1, y=2; swap(&x, &y); printf("%d%d", x, y); }​‎​

以下代码的输出是 ：void f( int *pa, int *pb ) { int pt; pt = *pa, *pa = *pb, *pb = *pa; } int main(void) { int x=1, y=2; f(＆x, ＆y); printf("%d%d", x, y); }

中国大学MOOC: 以下程序段的输出是( )。void swap(int *pa, int *pb) { int pt; pt = *pa, *pa = *pb, *pb = *pa;}int main(void){ int x=1, y=2; swap(&x, &y); printf(%d %d, x, y);}

将反应H2（pθ）+1/2O2（pθ）= H2O(l) 设计成电池，下列正确的是（ ） A: Pt | H2（pθ）| H+（α）| O2（pθ）| Pt B: Pt | O2（pθ）| OH-（α）| H2（pθ）| Pt C: Pt | O2（pθ）| OH -（α1）|| H+（α2）| H2 （pθ）| Pt D: Pt | H2（pθ）| H+（α1）|| OH -（α2）| O2（pθ）| Pt