【单选题】要打开已定义的数据库连接对象conn,正确的语句是()。
【简答题】RRC_CONN_REQ,RRC_CONN_SETUP走上行( )信道,RRC_CONN_SETUP_CMP走上行( )信道。
【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 David and Henry fond of playing basketball in the spare time.