In the 19th century, gold was first ________ in California. A.incoveredB.recoveredC.uncoveredD.discovered
In the 19th century, gold was first ________ in California.
A.incovered
B.recovered
C.uncovered
D.discovered
相关考题：
The pioneer type was the characteristic one at the turn of the seventeenth century and also fit the beginning of the______(twenty)century，but it is much less evident today.
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
Whatistheendresultofthesecommandsiftheyaresuccessful？（）RMANshowretentionpolicy；RMANconfigurationparametersfordatabasewithdb_unique_nameORCLare：CONFIGURERETENTIONPOLICYTOREDUNDANCY1；defaultBackupdatabasetag=gold_copyplusarchivelogtag=gold_copydeleteinput；Backupdatabasetag=silver_copyplusarchivelogtag=silver_copydeleteinput；A.Attemptingtorestoresilver_copywillfail.B.Attemptingtorestoregold_copywillfail.C.Bothbackupswillbeavailableforrestorewithoutquestion.D.Attemptingtorestoregold_copymayormaynotsucceed.E.Youwillnotbeabletorestoreeithergold_copyorsilver_copy.
Gold序列与M序列相比,下面说法正确的是() A.Gold码序列的自相关特性优于M序列B.Gold码序列的互相关特性优于M序列C.M序列的自相关特性优于Gold序列D.M序列的互相关特性优于Gold序列
In__century,computers will be used more widely.A.twenty-oneB.the twenty-oneC.twenty-firstD.the twenty-first
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
6、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
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;