A:
B:
C:
D:
“朝奉”本为官名,有些徽商是由仕而贾的,他们不愿人们称其为“老板”,而代之以“朝奉”。久之,到明末,世人统称徽商为“徽州朝奉”。徽商不愿被称为“老板”,这从本质上反映出( )
(Ⅰ)求证:a、b、c成等差数列;
(Ⅱ)若 B=π3,S=83 ,求b.
People often think the grass is always greener on _________ side of the fence (篱笆).
68-50=____
48-30=____
38-20=____
28-10=____