Which statements of the event listener are true
A: Multiple listeners can be attached to one component.
B: Only one listener can be attached to one component.
C: One listener can receive and process the events from multiple components.
D: One listener can receive and process the events from only one component.
A: Multiple listeners can be attached to one component.
B: Only one listener can be attached to one component.
C: One listener can receive and process the events from multiple components.
D: One listener can receive and process the events from only one component.
A,C
举一反三
- 以下（）有关事件监听器的语句是正确的。 A: AMultiple listeners can be attached to one component B: BOnly one listener can be attached to one component C: COne listener can receive and process the events from multiple components D: DOne listener can receive and process the events from only one component
- Which statements are true regarding listeners（） A: Listeners use only the TCP/IP protocol. B: Multiple listener processes can run simultaneously on a host. C: Multiple database instances can be registered with a single listener. D: The listener-related errors can be traced only at the administrative level. E: Only one database instance can be registered with a single listener at any time
- Which statements are true regarding listeners（） A: AListeners use only the TCP/IP protocol. B: BMultiple listener processes can run simultaneously on a host. C: CMultiple database instances can be registered with a single listener. D: DThe listener-related errors can be traced only at the administrative level. E: EOnly one database instance can be registered with a single listener at any time
- Ellipsis is the only one word which must be inferred and supplied by the listener or reader.
- Can class be implemented by more than one component?
内容
- 0
轴线不能多个复制，只能单个复制。One only can copy axis one by one and cannot realize multiple times.
- 1
Only by diligence and honesty __________________. A: one can succeed in life B: can one succeed in life C: one can be succeed in life D: can one be succeed in life
- 2
Only by diligence and honesty . A: can one succeed in life B: one can succeed in life C: one will be succeeded in life D: can one be succeeded in life
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The only thing in the world that one can never receive or give too much is love.
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Can class be implemented by more than one component? A: 正确 B: 错误