Welcome to your future life!You get up in the morning and look into the mirror.Your face is firm and 7823萬字 9人讀過丨 連載
《Welcome to your future life!You get up in the morning and look into the mirror.Your face is firm and》:
最新章節: 慕課理論力學測試答案
更新時間:2022-05-23 09:00:37
若關于x的方程2mx+1=0和3x-1=2x+1有相同的解,則m=().
設、、都是實數,且滿足,;則代數式的值為.
下列方程中,是一元一次方程的是[ ]A.x+2y=5B.3x+4=0C.2x>3D.4x2=0
(﹣2)2的算術平方根是()A.2B.±2C.﹣2D.
已知:a+b+c=3,a2+b2+c2=3,則a2011+b2011+c2011的值是()A 0 B 3 C 22005 D3·22005