| In her international bestselling Talk
to the Hand, author Lynne Truss argues that common courtesies such as saying
"Excuse me" are practically extinct. There are certainly plenty who would agree
with her. Is it really true We decided to find out by experiments. In dozens of American cities, our reporters performed two experiments: "door tests" (would anyone hold one open for them); and "document drops" (who would help them retrieve a pile of "accidentally" dropped papers). Along the way, the reporters encountered all types; men and women of different races, ages, professions, and income levels. While 90 percent of the people passed the door test, only 55 percent passed the document drop. Are people less likely to help others when doing so takes extra effort or time Not always, the reporters found. Take the pregnant woman w A. Scientific B. Biased. C. Revolutionary. D. Realistic. [判断题]ZPW-2000A型无绝缘移频自动闭塞分区补偿电容的设置是根据轨道电路长度，数量按配置表确定，电容等距离△布置，距调谐单元的电容是1/2△。
A.正确 B.错误 [简答题]若更改UNIX操作系统下的工作站IP地址，需要更改哪个目录下的哪些文件。
[单选题]在excel2010的单元格中输入数据,默认的对齐方式是( )
A. 右对齐 B. 左对齐 C. 居中对齐 D. 分散对齐 [单项选择]当代教师素质能力的集中体现是（）。
A. 教师的个人修养 B. 教师的专业素养 C. 教师的个性品质 D. 师生关系 [单项选择] Directions: For each blank in the following passage, there are four choices marked A, B, C and D. Choose the one that is most suitable and write down the corresponding letter.
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