What term is used to describe the process where one frame is placed into a different type of frame?（）

下列关于Frame类的说法不正确的是( )。

框架（Frame）的缺省布局管理器是（）

框架（Frame）的缺省布局管理器就是（）

Frame的默认的布局管理器是下列哪一个？（）

在Java语言中，Frame默认的布局管理器是（）。 

在Java语言中，Frame默认的布局管理器是（）  

在Java语言中，Frame默认的布局管理器是（）。    

How many expansion frames can be attached to an IBM TS3500 model L23 or L53 base frame? （）

Fireworks中Frame的Custom的含义是：（）

如果有－个类MyFrame是Frame的子类，但它不能被实例化，请写出该类的声明头为（ ）。

The usual way to ensure reliable delivery is to provide the  （1）  with some feedback about what is happening at the other end of the line. Typically, the protocol calls for the receiver to send back special  （2）  frame bearing positive or negative  （3）  about the incoming frames. If the sender receives a positive acknowledgement about a frame, it knows the the frame has arrived safely. On the other hand, a negative acknowledgement means that something has gone wrong, and the frame must be transmitted again.An additional complication comes from the possibility that hardware troubles may cause a frame to  （4）  completely. In this case, the receiver will not react at all, since it has no any reason to react. It should be clear that a protocol in which the sender transmits a frame and then waits for an acknowledgement, positive or negative, will hang forever if a frame is ever lost due to, for example,  （5）  hardware.