如图是自车行的刹车手柄示意图，请画出动力和阻力的力臂．
Our school is _____ the park. [ ]
A. in
B. of
C. near
若类A和类B的定义如下： class A { int i,j; public:int geti(){ return i;} }; class B: public A {int k; public:void make(){ k=i*j}}; 则上述定义中非法的语句是
A．k=i*j;
B．int k;
C．return i;
D．void make()
