main() { union exp{ struct {int x;int y;}sa; int a1; int a2;}ave; ave.a1=1;ave.a2=2; ave.sa.x=ave.a1*ave.a2; /*执行此语句后,ave.al和ave.a2值都是4*/ ave.sa.y=ave.a1+ave.a2; printf("%d,%d\n",ave.sa.x,ave.sa.y); }
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【单选题】听力原文:Opposite the infirmary is the administration building. You go directly this way and turn left at the crossing, you will find the infirmary. (29)
A.
The administration is opposed to building a new infirmary.
B.
The clinic and the administration center are located in the same building.
C.
The clinic is much smaller than the administration building.
D.
The administration center is across from the infirmary.