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广义能量守恒可以通过寻找循环坐标来得到

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所有几何约束都是完整约束

完成下面类中成员函数的定义。 #include ＜iostream.h＞ class vehicle {protected: int size; int speed; public: void set(int s){speed=s;} _____get(){return speed/10;} }; class car:public vehicle { public: int get(){return speed;} }; class truck:public vehicle { public: int get(){return speed/2;} }; int max(vehicle &v1,vehicle &v2) { if(v1.get()＞v2.get()) return 1; else return 2; } void main() { truck t; car c; t.set(160); c.set(80); cout＜＜max(t,c)＞＜＜endl; 此结果输出为2＞

《圣经》各经卷有统一主题，是由同一批编书人集中编纂完成的。

The first step in preparing a report is to sit down and begin writing immediately; this technique allows you to capture your best ideas quickly.