已知等腰三角形的两条边长分别为2和5，则它的周长为[ ]
A．9
B．12
C．9或12
D．5
答案：B
“入则无法家拂士，出则无敌国外患者，国恒亡。然后知生于忧患，而死于安乐也。”孟子的这句话告诉我们[ ]
A．只有出生于国难危亡之际，才能有所作为
B．振兴中华是我们义不容辞的责任
C．一个人在其一生中要时时刻刻充满忧愁，患得患失
D．忧患可以兴国，我们要树立忧患意识，这样才能促进国家发展
Question 28 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question.Now listen to the news.
A．He made a public appearance.
B．He published a book telling the truth.
C．He was found in a picture of a film.
D．He received an interview by a TV reporter.
