【单选题】Following statements were stated in context of publisher and subscriber A subscriber is an object that raises the handles and events.A publisher is an object that wants to accept the event and provide...
A.
A publisher is an object that contains the definition of the event and the delegate.
B.
subscriber is an object that wants to accept the event and provide a handler to the event.
C.
A publisher is an object that raise and fires the event handler and the delegate.
D.
subscriber is an object that wants to accept the event and provide a handler to the event.
E.
A subscriber is an object that contains the definition of the event and the delegate.
F.
publisher is an object that wants to accept the event and provide a handler to the event.
G.
A subscriber is an object that raise and fires the event handler and the delegate.
H.
publisher is an object that wants to accept the event and provide a handler to the event.
【单选题】要打开已定义的数据库连接对象conn,正确的语句是()。
【单选题】Not only I but also Jane and Mary ______ tired of having one examination after another.
【单选题】Not only I but also Jane and Mary______ worn out after having one examination after another.
【单选题】Each subscriber connects via local loop to a switching center, an end office. 【 】
【多选题】You have a durable subscriber, and the subscriber is down or not reachable when the message is produced. Which two options regarding the expiry of these messages are true?()
A.
after the subscriber is unavailable for 10 minutes
B.
when the subscriber is available
C.
after the subscriber is unavailable for after an hour
D.
are available until the specified time elapses
【简答题】哈罗德连续六年存了7.2万美元,每月存( )。
【单选题】Not only I but also she _ playing football.