世贸组织最重要的基本原则是
A．最惠国待遇原则
B．国民待遇原则
C．非歧视原则
D．互惠原则
答案：C
—Don't be late next time, Mike.
—__________. [ ]
A. No, I don't
B. Don't worry
C. Sorry, I won't
D. I don't know
