Inside the computer, the operation system (of another software module called a data communication (71) )must decide which program will get control next. Each program remember, is associated (72) . a particular front -end port. If a program’s data have not yet reached its front - end buffer, there is no point giving that program control. Thus the data communication monitor sends its own (73) signal to the front -end devices next port is polled. Note that the (74) computer speed. The computer never has to wait for a terminal or a communication line. Instead, it is the expressive front - end processor that waits for the slower system (75) to respond.

（71）处填（）。

A．memory

B．control

C．monitor

D．charge

材料一：随着社会主义市场经济的不断发展，人们的价值取向更加多元化。当今社会上存在着荣辱观模糊不清的现象，这些不良现象正在无声地影响着青少年一代，如不及时敲响警钟，后果堪忧。

材料二：洪战辉是湖南怀化学院的一名大学生。他勤工俭学，照顾患病的父亲和捡来的妹妹，被评为“2005年度感动中国十大人物”之一。他说过：“苦难的经历并不是我们博得别人同情的资本，奋斗才是最重要的。”

阅读上述材料，结合所学知识，回答下列问题：

（1）材料一所指的“不良现象”有哪些？（至少列举4个）。

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（2）我们青少年应怎样以洪战辉为榜样，把树立社会主义荣辱观落实到实际行动中去？

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