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【简答题】
当把一只图片(图5-13中图A)放到一张背景图(图B)上时，背景图将被图片遮住一个矩形区域(图C)。利用程序设计语言处理图形图像数据，可以使图片上非的其他部分变成透明，使观察者不会感觉到图片遮住一个矩形区域。 在编程之前，使用图像处理工具软件对图片进行处理。首先将原始的图片复制两份，其中一幅图片将其应该透明之处(的背景)设置为黑色(图D)，另一幅图片将其非透明之处设置为黑色，其余地方(的背景)设置为白色(图 E)。假定白色和黑色的值分别为全1和全0，则由图B、图D和图E，得到图F的效果，需要进行哪些逻辑运算操作?
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【单选题】Our words are meaningless and cannot be distinguished from their opposites, as can be proved by an example. People think that they know the difference between the meanings of 'bald' and 'having hair. ...
A.
The word 'bald' can be translated into other languages.
B.
A word can have more than one meaning.
C.
A word such as 'cat' can be applied to several animals that differ in some respects.
D.
Words can lack precision without being meaningless.
E.
People cannot think clearly without using words.
【单选题】It can be inferred from the passage that Social Security privatization will ______ .
A.
provide high returns for the new governments
B.
be strongly opposed by Wall Street
C.
bring the future retirees more benefits
D.
allow individuals to invest in personal accounts
【单选题】Which of the following facts is true according to the text?
A.
State-owned enterprises can make the most of foreign investment in the future.
B.
Foreign media companies can invest in multiple fronts including dance, film and news.
C.
Chinese media company will no longer be confined to governmental restrictions.
D.
Media enterprises from outside China has never managed to enter Chinese market.
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