【简答题】如图所示,三极管的基极电流Ib增大时,三极管的CE之间等效电阻RCE减小,UcE将减小,输出电压U。将( )。
【多选题】The Sustainable Development Goals by UN are a call for action by all countries – poor, rich and middle-income – to promote prosperity while protecting the planet. They recognize that ending poverty mu...
A.
1. No poverty 2. Zero hunger 3. Good health & well-being 4. Quality education
B.
5. Gender equality 6. Clear water and sanitation 7. Affordable and clean energy 8. Decent work and economic growth
C.
9. Industry innovation and infrastructure 10. Reduced inequalities 11. Sustainable cities and communities 12. Responsible consumption and production
D.
13. Climate action 14. Life below water 15. Life on land 16. Peace, justice and strong institutions 17. Partnerships for the goals
【简答题】如图所示,三极管的基极电流Ib增大时,三极管的CE之间等效电阻RCE减小,UCE将减小,输出电压UO____。
【单选题】以下程序的运行结果为 ( )。 void sub(int x, int y, int *z) { *z = y – x; } int main(void) { int a,b,c; sub(10, 5, &a) ; sub(7, a, &b) ; sub(a, b, &c) ; cout< b< c< }
【简答题】如图所示,三极管的基极电流增大时,三极管的CE之间等效电阻RCE减小,UcE将减小,输出电压U。将( )。
【单选题】请选出以下程序的输出结果______。void sub(int x,int y,int *z){*z = y–x;}main(){ int a,b,c;sub(10,5,&a); sub(7,a,&b); sub(a,b,&c);printf("%d,%d,%d\n",a,b,c);}
【多选题】哪些元器件是同学们认识的,但不会检测其好坏?