180×79÷78，
=140×87，
=160（厘米）．
答：妈妈的身高是160厘米．
The two girls, born four days _______ in January 1986, have been friends since their junior days and both won the championship this year.
A．off
B．away
C．ahead
D．apart
三相交流异步电机常见的电气工故障有哪些/
