候选人在什么情况下当选社区委员会成员？
Which two of the following descriptions are correct according to the displayed output of thecommand show ip bgp summary？（） ["The BGP session to the 10.1.1.1 neighbor is established","The router is trying to create a BGP peering session with the 10.1.1.1 neighbor","The BGP session to the 10.3.3.3 neighbor is created， but the router received no BGP routingupdates from the 10.3.3.3 neighbor","The router is attempting to establish a BGP peering session with the 10.2.2.2 neighbor"]
简述酶反应器设计的主要内容。
说明下列句中黑体字在句中的意义 任座趋而出。
叉柱造
霞石正长岩、磷霞岩和碳酸岩杂岩体
