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[单选题]
22.在结构化程序设计中，模块间的耦合性低的好处是
A
系统开发的成本低
B
系统的可维护性更好
C
模块间调用关系简单
D
各模块的可靠性更高
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试题答案：
B
答案解释：
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16．下列关于辅导目标制定原则的说法中不正确的是
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23.操作系统探测技术主要包括：获取标识信息探测技术、基于________协议栈的操作系统指纹探测技术和ICMP响应分析探测技术
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We wouldn t lose heart even if we _ again.
4.
CA woman:heads into apopular New York City coffee shop on a cold: winter rooming. Just ahead of her, a man drops a few papers. The woman pauses to help gather them. A clerk ata busy store thanks a customer who has just bought something. "Enjoy" the young woman says, smiling widely. "Have a nice day." She sounds like she really means it. These arethe common situations we may see every: day.However, in her best-selling book Talk to the Hand, Lynne Truss argues that common good manners such as saying "Excuse me" almost no longer exist. There are certainly plenty who would agree with her. According to one recent study, 70 percent of the U.S. adults (成A.)said people are ruder now than they were 20 years ago.Is it really true? We decided to find out if good manners are really hard to see. In this politeness study, reporters were sent to many cities in the world. They performed three experiments: "door tests" (would anyone hold the door open for them?); "paper drops" (who would help them gather a pile of "accidentally" dropped papers?); and "service tests" (which salesclerks would thank them for a purchase ?)In New York, 60 tests (20 of each type)were done. Along the way, the reporters met all types of people: men and women of different races, ages, professions (职业), and income levels. And guess what? In the end, four out of every five :people they met passed their: politeness test making New York the most polite city in the study.
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