________________A.first B.last C.other D.only
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A.first B.last C.other D.only
相关考题：
带头结点的单链表first为空的判定条件是()。 A . first==NULLB . first->1ink==NULLC . first->link==firstD . first!＝NULL
The Declaration of Independence was adopted by the ___ Continental Congress on July 4, ___. A.First / 1774B.First / 1776C.Second / 1774D.Second / 1776
WhichtwoarecharacteristicsofanIPv6multicastaddress?() A.First（mostsignificant）octetisFFinhexB.StartswithaprefixofFE80toFEBFinhexC.StartswithaprefixofFECOtoFEFFinhexD.Secondoctetcontainsa4-bitmulticastscopefieldE.Last64bitcontainsthemodifiedMACaddressoftheEthernetinterfaceF.Isallocatedfromtheunicastaddressspace
在循环单链表中，设指针first指向头结点，当_____时表示链表为空。A．first==NULLB．first-＞link==NULLC．first-＞link==firstD．first-＞link-＞link==first
在带表头结点的单链表中，设指针first指向表头结点，当______时，表示链表为空。A．first==NULLB．first-＞link==NULLC．first-＞link==firstD．first!=NULL
带头结点的单链表first为空的判定条件是：A．first == NULL;B．first-＞link == NULL;C．first-＞link == first;D．first != NULL;