When we announced Java 2 Micro Edition (J2ME) a few years ago, we believed that Java had an important role to play in hand held devices. Some were (66) that Java would be small enough for such limited devices. But no (67) , Java for the small device is a success. J2ME has emerged ply in the wireless market. Java’s portability and extensibility have brought about rapid (68) in this market. The success of Java beyond desktop computers is significant (69) developers. Java literacy is now more important than ever, as Java is used more and more to (70) a whole range of new computing devices—not only wireless handsets but also personal digital assistants, cameras, automobiles, home control, and so on.

（69）处填（）。

A．to

B．for

C．on

D．at

人们描述幼儿教师是幼儿“生活中的妈妈，学习中的老师，游戏中的伙伴”，这说明幼儿教师的劳动具有（）的特点。

A.纯真美好

B.教育效果长期性

C.精神生产

D.多重角色