She ______mail the package before the post office closes. A.hasB.have toC.has toD.must to
She ______mail the package before the post office closes.
A.has
B.have to
C.has to
D.must to
相关考题:
在Java语言中,在包Package1中包含包Package2,类Class_A直接隶属于包Package1,类Class_B直接隶属于包Package2。在类Class_C要应用Class_A的方法A和Class_B的方法,你需要()语句。 A.importPackage1.*;B.importPackage1.Package2.*;C.importPackage2.*;D.importPackage2.Package1.*;
ideally, lesson planning should be done at two levels: _______________. A. before-class planning and after-class planningB. before-class preparation and after-class feedbackC. before-class planning and after-class reflectionD. macro planning and micro planning
by ___________, we mean tasks that students do before they read the text in detail. A. pre-reading activitiesB. while-reading activitiesC. before-class preparationD. post-reading activities
对树中的一个结点,在先根序列中序号为pre(x),在后根序列中序号为post(x),若树中 x是结点y的祖先,下列条件中正确的是_________。A.pre(x)<pre(y)和post(x)<post(y)B.pre(x)<pre(y)和post(x)>post(y)C.pre(x)>pre(y)和post(x)<post(y)D.pre(x)>pre(y)和post(x)>post(y)
对树中的一个结点,在先根序列中序号为pre(x),在后根序列中序号为post(x),若树中x是结点y的祖先,下列条件中正确的是A.pre(x)<pre(y)和post(x)<post(y)B.pre(x)<pre(y)和post(x)>post(y)C.pre(x)>pre(y)和post(x)<post(y)D.pre(x)>pre(y)和post(x)>post(y)
对于一个Java源文件,包含三个顶级元素,它们正确的书写顺序是()。A.package,import,classB.class,import,packageC.import,package,classD.package,class,import
2、下列关于package语句的说法中,错误的是()A.若程序中没有出现package语句,则缺省的包为当前目录B.程序中至少要包含1个package语句C.若包含package语句,则该语句必须是程序的第一条可执行语句D.程序中可以包含1个package语句
在一个Java源程序中,如果import语句、package语句、class语句都存在,则出现的次序应为()A.import先出现,package和class出现的次序随意B.class语句、import语句、package语句C.package语句、import语句、class语句D.package语句、class语句