The population of Jiangsu __ to more than twice what it was in 1949. The figure is now approaching 74 million.
A． has grown
B． have grown
C． grew
D． are growing
Previous studies show that parents tend to be aware of sleep problems in older children and adolescents and that pediatric practitioners are ( ) likely to identify sleep problems in these age group.：A、less…lessB、less…moreC、more…lessD、more…more
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In his composition there are ________errors _______a few misspellings.A: no other ... thanB: some other ... thanC: more ... thanD: other ... than
“________have you visited the Great Wall?” “Twice.”A.How soonB.How oftenC.How many timesD.How long
定义类：packageutils；publicclassRep{publicstaticStringtwice（Strings）{returns+s；}}再定义另一个类Demo：//insertcodeherepublicclassDemo{publicstaticvoidmain（String[]args）{System.out.println（twice（"Hello"））；}}在第一行插入哪项代码，可以使程序正常编译和执行？（）A.importutils.*；B.importutils.Rep.*；C.importstaticutils.Rep.twice；D.staticimportutils.Rep.twice；
GivenaclassRepetition：1.packageutils；2.3.publicclassRepetition{4.publicstaticStringtwice（Strings）{returns+s；}5.}andgivenanotherclassDemo：1.//insertcodehere2.3.publicclassDemo{4.publicstaticvoidmain（String[]args）{5.System.out.println（twice（”pizza”））；6.}7.}Whichcodeshouldbeinsertedatline1ofDemo.javatocompileandrunDemotoprintpizzapizza”？（）A.importutils.*；B.staticimportutils.*；C.importutils.Repetition.*；D.staticimportutils.Repetition.*；E.importutils.Repetition.twice（）；F.importstaticutils.Repetition.twice；G.staticimportutils.Repetition.twice；
Given a class Repetition:Which code should be inserted at line 1 of Demo.java to compile and run Demo to print "pizzapizza"?()A.import utils.*;B.static import utils.*;C.import utils.Repetition.*;D.static import utils.Repetition.*;E.import utils.Repetition.twice();F.import static utils.Repetition.twice;G.static import utils.Repetition.twice;
15．A．one'B．twoC．threeD．twice
