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Section A Last spring, my husband and I loaded our three children into the car and drove off to see friends in the United States. Over the course of a week, we visited half a dozen households, each with children of its own. (76) And I found myself struck, again and again, by the frequency with which we modern parents use television to silence young children. Get a couple of families together, and when noise from the kids rises too much, on goes the video and all is gratifying silence until the credits roll. (77) It' s like throwing a blanket over a noisy parrot' s cage; With one motion, the parrot' s stimulating surroundings vanish and its squawking instantly subsides. Hit the 'play' button and the same thing happens. Children might be wrestling or running around, but let that mesmerizing box light up and they' 11 stop to stare at the screen. Nearby, the adults smile as the caterwauling ceases: ' Phew! That' s better. The video has become a member of every family I know. Need to finish a project on a Sunday afternoon? Popping a video buys you an hour or two. Often my children go to play in someone' s basement room and a video is on from the time they arrive until they leave. Guilty as I am myself. I find promiscuous use of this sedative disquieting. Children don’t stand a chance against videos. (78) No matter how imaginative or independent they may be or how much they may like playing with visiting friends, they cannot escape the stupefying effects of the box. (79) Child-development expert Paul Smith attributes this to the brain' s ' orienting response, ' a reaction discovered by Parlor early in the last century. 'We humans are programmed to look at abrupt changes in our Visual field. ' she writes. ' It' s part of our survival mechanism. The colorful, quick images on TV are difficult to resist. (80) Years ago. I read in a newspaper about a study that found if people can choose between watching a lecturer behind a podium and a video projection of that same lecturer, they' 11 gaze at the screen. The TV trumps real life every time. (46)
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【简答题】对于双极型三极管放大电路来说,既能放大电压,也能放大电流的是 接法 的放大电路。
【单选题】Java中,使用哪个关键字来定义一个接口?
A.
implements
B.
class
C.
extends
D.
intece
【单选题】使用哪个关键字来定义一个接口()
A.
implements
B.
class
C.
extends
D.
intece
【判断题】瑞文推理测验是一种非文字的图形测验。( )
A.
正确
B.
错误
【单选题】瑞文推理测验是由英国心理学家瑞文编制的一种团体智力测验。它是非文字型的图形测验,分为三个水平。其中瑞文标准推理测验,1938年出版,共有60个项目。它的受测人群年龄最低不能小于()
A.
6
B.
5.5
C.
5
D.
4
【单选题】Java 中,使用哪个关键字来定义一个接口( A )。 A)implements B)class C)extends D)intece
A.
B.
C.
D.
D
【单选题】定义一个接口时,请问使用哪个关键字来声明一个接口?
A.
implements
B.
intece
C.
abstract
D.
extends
【多选题】下列哪些不是流动性偏好理论的基本观点?( )
A.
利率期限结构取决于短期资金市场供求状况与长期资金市场供求状况的比较
B.
市场效率低下导致资金从长期(或短期)市场向短期(或长期)市场流动可能存在障碍
C.
投资者在接受长期债券时会要求对他承受的与债券较长偿还期限相联系的风险给予补偿
D.
利率期限结构完全取决于对未来利率的市场预测
【简答题】对于双极型三极管放大电路来说,既能放大电压,也能放大电流的是 接法 的放大电路。
【判断题】当没有异常出现时, finally 子句中的内容不会被执行。
A.
正确
B.
错误
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