若3xm-1y与x3y是同类项,则m=______.
∵3xm-1y与x3y是同类项,
∴m-1=3,
解得m=4.
故答案是:4.
If you are loading fruit in reefer spaces and you notice that the fruit is beginning to mold, you should().
A.carry the cargo at a cooler temperature than originally planned
B.write up exception on the cargo
C.refuse to carry the cargo
D.discharge CO2 into the compartment after loading
一次精密定平微倾水准仪能使水准管在任何方向均处于水平位置,适用于抄水平线,更适用于引测高程控制点。