2x2-7x+5=0(用公式法解)
∵a=2,b=-7,c=5
∴b2-4ac=9>0
∴x=7±94=7±34
∴x1=52,x2=1.
在美国发行的外国债券叫作( )。
A.扬基债券
B.武士债券
C.熊猫债券
D.欧洲债券
(c) State the enterprise income tax (EIT) treatment of a monetary charitable donation made by a representative office (RO) that is subject to EIT on a cost-plus basis. (1 mark)