Helen gave her daughter （） A: a ring B: to a ring C: for a ring D: with a ring
Helen gave her daughter （） A: a ring B: to a ring C: for a ring D: with a ring
The Ring of the Nibelung is generally known as the Ring or the Ring Cycle.
The Ring of the Nibelung is generally known as the Ring or the Ring Cycle.
A ring homomophism f from a ring R onto another ring S is an isomophism if and only if kerf=0.( )
A ring homomophism f from a ring R onto another ring S is an isomophism if and only if kerf=0.( )
In The Fellowship of the Ring, Frodo Baggins inherits the One Ring from Bilbo Baggins, his cousin and guardian.
In The Fellowship of the Ring, Frodo Baggins inherits the One Ring from Bilbo Baggins, his cousin and guardian.
Jack<br/>was reading a book when the phone ____. A: ringing B: ring C: rang D: was ringing E: was ring
Jack<br/>was reading a book when the phone ____. A: ringing B: ring C: rang D: was ringing E: was ring
在非procondition的基本会话流程中包含哪些SIP消息（）。 A: INVITE B: 180RING C: 200K D: UPDATE
在非procondition的基本会话流程中包含哪些SIP消息（）。 A: INVITE B: 180RING C: 200K D: UPDATE
在非procondition的基本会话流程中包含哪些SIP消息（） A: INVITE B: 180RING C: 200OK D: UPDATE
在非procondition的基本会话流程中包含哪些SIP消息（） A: INVITE B: 180RING C: 200OK D: UPDATE
contractile ring（收缩环）
contractile ring（收缩环）
1.The bell is ring ____ there is a fire.
1.The bell is ring ____ there is a fire.
INVITE在非procondition的基本会话流程中包含哪些SIP消息（） A: INVITE B: 180RING C: 200K D: UPDATE
INVITE在非procondition的基本会话流程中包含哪些SIP消息（） A: INVITE B: 180RING C: 200K D: UPDATE