用字母a、b、c表示三个数,乘法分配律可以写成______.
a×(b+c)=a×b+a×c;
故答案为:a×(b+c)=a×b+a×c.
With the help of high technology in the past few years, electronic business ______ to bank industry and travel industry.
A.applied
B.have applied
C.had been applied
D.has been applied
照样子,连一连。
脱 睡 合 收
眼睛 布鞋 棉被 午觉