计划生育的内涵是优生优育。
参考答案：对
— Have you any idea where he comes from?
— Judging by his __________, he must be from Hunan.
A．tone
B．style
C．voice
D．accent
端午节吃粽子是为了纪念屈原这一说法起源于哪个年代？（）
A.隋朝
B.南朝
C.明朝
D.宋朝
