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.
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
- Which two 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.