∵m+1m=3,
∴(m+1m)2=9,
∴m2+2m?1m+1 m2=9,
则m2+1m2=7,
故答案为:7.
高中时期能达到记忆的“高峰”,高中生处于记忆的“全盛”时期。()
You’ll become more confident and stronger after you finish your senior school lessons. You see, hard work _____ character.
A.puts up
B.builds up
C.sets up
D.turns up