以下程序的执行结果是______。 #include＜iostream.h＞ #include＜stdliB.h＞ class Sample { public: int x, y; Sample(){x=y=0;} Sample(int a, int b){x=a;y=b;} void disp() { cout＜＜"x="＜＜x＜＜", y="＜＜y＜＜end1; } }; void main() { Sample s1(2,3); s1.disp(); }

On a semisubmersible ship，reserve buoyancy is increased by the presence of void spaces above the waterline in the（）.

A.submerged hulls

B.quarters

C.columns and upper structure

D.submerged connecting structures