摘要：求差法:a＞b a-b＞0 2.求商法:a＞b＞0
网址：http://m.1010jiajiao.com/timu_id_178213[举报]
△（△为△ABC的面积）
，再用求差法）已知变量a、b已被赋值，要交换a、b的值，采用的算法是（ ）
| A．a =" b," b =" a" | B．a =" c," b =" a," c =" b" |
| C．a =" c," b =" a," c =" a" | D．c =" a," a =" b," b = c |
网址：http://m.1010jiajiao.com/timu_id_178213[举报]
已知变量a、b已被赋值，要交换a、b的值，采用的算法是（ ）
| A．a =" b," b =" a" | B．a =" c," b =" a," c =" b" |
| C．a =" c," b =" a," c =" a" | D．c =" a," a =" b," b = c |
A村在C村正北