已知单项式2xm-1y与-3x2y2+n是同类项,则m=______,n=______.
根据题意得:m-1=22+n=1,
解得:m=3n=-1.
故答案是:3,-1.
Small computers need small amount of power, _______ means you use less electricity.
A.what
B.that
C.which
D.as
在“季世人知医尚矣,习方其简也,穷经其烦也”中,“季世”之义为()
A.末世
B.今世
C.地名
D.后世