中国古代60岁的男子称为()。
A.不惑
B.知天命
C.花甲
D.古稀
参考答案:C
.
-- Better get down to your work, Jack.
--- _____________.
A.It’s my pleasure
B.Not to mention it
C.Mind your own business
D.You’re welcome
支气管扩张的咳嗽特点是().