如果两个数之和是正数，则关于这两个数的说法中，正确的是
A．一个是正数，一个是负数
B．两个都是正数
C．至少有一个是正数
D．至少有一个负数
答案：C
He is a very honest official and never _____ any gifts from the people who sought his help.
A．accepted
B．received
C．took up
D．excepted
加味地黄丸1功效与作用
