First, let's talk about culture. The difference between the mobile phone and its parent, the fixed-line phone, is that a mobile number corresponds to a person, while a landline goes to a place. If you call my mobile, you get me. If you call my fixed-line phone, you get whoever answers it.
This has several implications. The most common one, however, and perhaps the thing that has changed our culture forever, is the "meeting" influence. People no longer need to make firm plans about when and where to meet. Twenty years ago, a Friday night would need to be arranged in advance. You needed enough time to allow everyone to get from their place of work to the first meeting place. Now, however, a night out can be arranged on the run. It is no longer "see you there at 8", but "text me around 8 and we'll see where we all are".
Texting changes people as well. In their paper, "Insights into the Social and Psychological Effects of SMS Text Messaging", two British researchers distinguished between two types of mobile phone users: the "talkers" and the "texters"— those who prefer voice to text messages and those who prefer text to voice.
They found that the mobile phone's individuality and privacy gave texters the ability to express a whole new outer personality. Texters were likely to report that their family would be surprised if they were to read their texts. This suggests that texting allowed texters to present a self-image that differed from the one familiar to those who knew them well.
Another scientist wrote of the changes that mobiles have brought to body language. There are two kinds that people use while speaking on the phone. There is the "speakeasy "the head is held high, in a self-confident way, chatting away. And there is the "spacemaker": these people focus on themselves and keep out other people.
Who can blame them? Phone meetings get cancelled or reformed and camera-phones intrude on people's privacy. So, it is understandable if your mobile makes you nervous. But perhaps you needn't worry so much. After all, it is good to talk.
When people plan to meet nowadays, they ______.
A.arrange the meeting place beforehand.
B.postpone fixing the place till the last minute.
C.seldom care about when and where to meet.
D.still love to work out detained meeting plans.
第1题
关于食源性感染叙述错误的是()。
A.食源性感染是指食用了患病动物的动物性食品或被污染的动物性食品而引起的人兽共患病或寄生虫病
B.也称为肉源性感染,常见食源性感染的疾病主要有:炭疽、鼻疽、布病、结核、沙门氏菌病、疯牛病、弓形虫病、肉孢子虫病、旋毛虫病等
C.食物起了传播病原物质的媒介作用
D.我国规定,生猪屠宰检验猪囊尾蚴、肉孢子虫,在牛屠宰中检验牛囊尾蚴、旋毛虫
E.临诊特征为中毒或感染
第3题
下列属于动物性食品外源性生物性污染的是()
A、动物生前患人兽共患病
B、动物生前感染微生物
C、动物生前患固有疫病
D、从业人员患病导致结核分支杆菌污染
E、动物生前感染寄生虫
第5题
关于动物性食品的污染来源错误的是()。
A.动物性食品的污染分为内源性污染(二次污染)和外源性污染(一次污染)
B.内源性污染是指食品动物生前受到的污染
C.内源性生物性污染的主要原因是畜禽生前患人兽共患病、生前患固有疫病、生前带染微生物和寄生虫
D.外源性生物性污染的原因主要是水、空气、土壤、加工过程、运输过程、贮藏过程的污染
E.外源性化学性污染的主要原因包括食品添加剂、加工材料、加工过程、贮藏中的污染及腐败变质中产生有害物质
第7题
A. 是
B. 否
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!