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【单选题】
关于 Flash 动画的特点,以下说法正确的是A.
Flash动画受网络资源的制约一般比较大，利用Flash制作的动画是矢量的
B.
鲜明，有趣的动画效果更能吸引观众的视野
C.
具有文件大，传输速度慢，播放采用流式技术的特点
D.
Flash动画已经没有崭新的视觉效果，比不上传统动画轻易与灵巧
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【简答题】已有的对传感网,互联网,移动网,安全多方计算和________________________等一些安全解决方案在物联网环境中可以部分使用,但另外部分可能不再适用。
【单选题】The marginal social benefit received from pollution is less than its marginal social cost in the market for highly polished glass. In this situation:
A.
firms in the market produce the socially optimal level of pollution.
B.
society's well-being cannot be improved by changing the quantity of pollution.
C.
firms in the market produce too much pollution.
D.
firms in the market produce too little pollution.
【单选题】It is the main idea of the passage that______.
A.
the common social value of success measured by high consumption should be improved
B.
the opposite extreme of overconsumption—poverty is not probable to help solve either environmental or human problems
C.
the traditional values of integrity of character, good work, friendship, family and community are tampered with along with the run of overconsumption
D.
it is the point that where a best balance can be made between fostering consumption and decreasing wealth possession
【单选题】If the marginal social benefit received from pollution is less than its marginal social cost:
A.
society's well-being can be improved if the quantity of pollution increases.
B.
society's well-being can be improved if the quantity of pollution decreases.
C.
society has achieved its socially optimal level of pollution.
D.
the market is producing too little pollution.
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