浩瀚的宇宙，地球是目前人类所知道的唯一有生命存在的星球，你认为所有生物最基本的特征是  [ ]

A．除病毒以外，生物都是由细胞构成的

B．都有生长发育现象

C．都有新陈代谢现象

D．都有应激性

A number of graduates prefer to work in big cities, where there are lots of __________, like

convenient transportation, more opportunities and better environment. [ ]

A. amusements  

B. attractions

C. collections  

D. achievements