已知下列反应:
Co2O3+6HCl(浓)═2CoCl2+Cl2↑+3H2O
2FeCl3+2KI═2FeCl2+I2+2KCl Cl2+2FeCl2═2FeCl3
则下列物质氧化性由强到弱的顺序是( )
“以铜为镜,可正衣冠;以人为镜,可知得失;以史为镜,可知兴替矣!”假如你是唐太宗,你会以谁为“镜”( )
How color at new red
A: Look ____ my ____ skirt.
B: ____ nice!
A: What ____ is my skirt?
B: It's ____.
A: Red? It's yellow. (黄色的)
—Good idea. I think ____ the general manager ___ the chief engineer have the courage to take on the challenge.
获得尊重的前提是( )