A:割地
B:赔款
C:开设工厂
D:增开口岸
某定值电阻两端的电压增加1V,流过的电流就增大0.1A,该电阻的阻值为____ Ω.
Mr. Zhang is mad at the children who often copy others' homework.
2+23 =2 23 ,验证: 2+23 = 2×3+23 = 233 =2 23 ;
3+38 =3 38 ,验证: 3+38 = 3×8+38 = 338 =3 38