1992年被联合国列入《世界自然遗产名录》的我市风景名胜区是[ ]
A．武陵源风景区
B．天门山国家森体公园
C．八大公山自然保护区
D．南岳风景区
答案：A
— I think teenagers should be allowed to have part-time jobs.
— _____. Studying is more important for them. [ ]
A. I think so
B. I disagree with you
C. Me, too
D. No problem
冒泡排序算法在最好的情况下的元素交换次数为 【1】 。
