A．slowB．deafC．blindD．lame

下列程序段中哪一组将a，b变量值交换？（)（A) a=a－bb=a＋ba=a－b（B) b=a＋ba=a－bb=a－b（C) a=a＋bb=a－ba=

回答（53）题 查看材料A.slowB.deafC.blinDD.lame

根据算符▽的微分性与矢量性，推导下列公式： ▽（A·B)=B×（▽×A)＋（B·▽)A＋A×（▽×B)＋（A·▽)B A×（▽×A)=▽A2－（A·▽)A

"in just-/spring when the world is mud-/luscious the little/lame balloonman" is most proba

53._________A. slowB. deafC. blindD. lame

Lame as he is he is interested in so many things