【单选题】Please rearrange the procedures for the main engine trial.I. close all indicator cocks; II. inform the bridge;III. give the main engine a trial on power ahead and astern; IV. start the engine on air o...
【简答题】void Bresenham_line(CDC *pDC, int x0, int y0, int x1, int y1, long color) { int dx = abs(x1 - x0); int dy = abs(y1 - y0); int x = x0; int y = y0; int stepX = 1; int stepY = 1; if( ) //从右向左画 ...
【简答题】设有甲乙两袋,甲袋中装有 4 只白球、 3 只红球, 3 只黑球;乙袋中装有 3 只白球、 4 只红球, 2 只黑球。 (1) 独立地从甲,乙两袋中各取 1 球,问取到两只黑球的概率是() ( 2 )从甲袋中任取 1 球放入乙袋,再从乙袋中任取 2 球,问取到的两只球中恰有 1 只白球的概率是()
【单选题】若有以下程序: #include <iostream> using namespace std; class A { private: int a; public: A(im i) { a=i; } void disp() cout<<a<<','; } }; class B { private: int b; public: B(int j) { b=j; } void disp0 { cout...