The lower-level classes (known as subclasses or derived classes) () state and behavior from the higher-level class (known as a super class or base class).
A. request B.inherit C.invoke D.accept
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商标权保护的对象是指()。
A. 商品 B.商标 C.已使用商标 D.注册商标
() is the name given to a “secret” access route into the system.
A. Password B.Firewall C.Cryptography D.Back door
() is exactly analogous to a marketplace on the Internet.
A. E-Commerce B.E-Cash C.E-Mail D.E-Consumer
在HTML文件中,()标记在页面中显示work为斜体字。
A. <pre>work</pre> B.<u>work</u> C.<i>work</i> D.<b>work</b>