First impressions are the most lasting. After all, you never get __ second chance to make __first impression.A. a; theB. the; theC. a; aD. the; a
First impressions are the most lasting. After all, you never get __ second chance to make __
first impression.
A. a; the
B. the; the
C. a; a
D. the; a
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PublicclassHoltextendsThread{PrivateStringsThreadName；Publicstaticvoidmain（Stringargv[]）{Holth=newHolt（）；h.go（）；Holt（）{}；Holt（Strings）{sThreadName=s；PublicStringgetThreadName（）{returnsThreadName；}}Publicvoidgo（）{Hotfirst=newHot（first）；first.start（）；Hotsecond=newHot（second）；second.start（）；}Publicvoidstart（）{For（inti=0；i2；i++）{System.out.print（getThreadName（）+i）；Try{Thread.sleep（100）；}catch（Exceptione）{System.out.print（e.getMessage（））；}}}}当编译运行上面代码时，将会出现（）A.编译时错误B.输出first0，second0，first0，second1C.输出first0，first1，second10，second1D.运行时错误
阅读以下说明和Java代码，将应填入(n)处的字句写在对应栏内。【说明】下面的Java程序演示了程序竞争资源(Mutex的实例对象)而引起程序死锁的一种例子。【Java程序】import java．applet．*；import java．awt．*；//此处声明一个互斥类class Mutex { }class A extends (1){private Mutex first，second；public A(Mutex f，Mutex s){first = f；second = s；}public void run(){//锁定first变量(2) (first){try{ //本线程挂起，等待重新调度Thread．sleep(1)； //注意此处(1)不是小题序号}catch(InterruptedException e){}System. out. println("threadA got first mutex")；(2) (second) //锁定second变量{ //do somethingSystem. out. println("threadA got second mutex")；} //释放second变量} //释放first变量}}class B extends (1){private Mutex first，second；public B(Mutex f，Mutex s){(3) ；second = s；}public void run(){(2) (second) //锁定second变量{//do somethingtry{Thread．sleep(((int)(3*Math．random()))*1000)；//本线程挂起，等待重新调度}catch(InterruptedException e){}System．out．println("threadB got second mutex")；(2) (first) //锁定first变量{//do somethingSystem．out．println("threadB got first mutex")；} //释放first变量} //释放second变量}}public class DeadlockExample{public static void main(String arg[]){Mutex mutexX = new Mutex()；Mutex mutexY = new Mutex()；AthreadA = new A(mutexX，mutexY)；B threadB = new B (4)；threadA．(5)；threadB．start()；}}
听力原文： If you want to invest money at short term, you've got several possibilities: first, a current account. This gives you the possibility of having all your money at your immediate disposal. It also entitles you to a cheque-book. Second, you've got a deposit account, which usually pays about 3. 5% interest, less tax. In that respect, a deposit account's a better investment than a current account. However, though you are entitled to a cheque-book, you can only withdraw up to a certain sum each month. For large amounts, you must give the bank a few months' notice. Finally, you have certificates of deposit. These pay in the order of 6.5% interest.28. How many possibilities are there for a customer to invest money at short term?29.With what kind of deposit can a customer NOT use a cheque-book?30.What is the interest rate for maintaining a deposit account?(28)A．2.B．5.C．4D．3
Did you sleep well last night? Maybe many people will answer No.In fact, in the world about one in three people do not have good sleep.(1) you say you do not have good sleep, it means waking early and not getting back to sleep, of ten interrupted short period of sleep, or hours or wakefulness.You (2) get tired, worried, and anxious.Your menory and ability to remember things will be affectedThen what should you do when you have the trouble? Do not worry about it too much.First, let' s see whether you can sleep yourself.The ways are as follows:First,(3)that your bedroom isn' t too cold or too hot Keep it dark aha quiet.Second, check your lifestyle.:Do not drink tea, coffee, cola or chocolate four hours before going to bed.Drink less liquid so that you can have no or fewer visits to the toiletSet your body clock well by getting up and going to bed he fixed time every day.You (4) take any day time naps.Develop a relaxing bedt ime habit.Read or listen to music.then take a warm bath.If you really can not sleep, try some bread, rice or mil.They will help you fall asleep.Go for a daily walk.Natural light helps you to put your body clock into correct habits,(5) do exercise outdoors if you can.Forget the worries of the day.Write down any worries,thoughts or uestions before you go to bed.With these written down, you will have less to think about and your sleep will become easier.(完型填空)A.Make sureB.MayC.IfD.Had betterE.So
The Declaration of Independence was adopted by the ___ Continental Congress on July 4, ___. A.First / 1774B.First / 1776C.Second / 1774D.Second / 1776
执行下列程序，显示的结果是______。first="china"second=""a=LEN(first)i=aDO WHILE i＞=1second=second+SUBSTR(first,i,1)i=i-1ENDDO?second
下面程序的输出结果是【】。 include using namespace std; int x; void funA(int,i 下面程序的输出结果是【 】。include＜iostream＞using namespace std；int x；void funA(int,int)；void funB(int,int)；int main(){int first；int second=5；x=6；funA(first,seconD) ；fimB(first,seconD) ；cout＜＜first＜＜" "＜＜second＜＜" "＜＜x＜＜end1；return 0；}void funA(int a，int B){int first；first=a+b；a=2*b；b=first+4；}void funB(int u，int v){int second；second=x；v=second+4；x=u+v；}
下面程序的输出结果是______。 include using namespace std; int x; void funA(int，int)；void funB(int，int)；int main(){int first；int second=5；x=6；funA(first，second)；funB(first，second)；cout＜＜first＜＜””＜＜second＜＜””＜＜x＜＜endl；return 0；}void funA(int a，int b){int first；first=a+b；a=2*b；b=first+4；}void funB(int u, int v){int second；second=x；v=second+4；x=u+v；}
有以下程序: include using namespace std; char *x[]={"First", "Second", "Third" 有以下程序： #include ＜iostream＞ using namespace std; char *x[]={"First", "Second", "Third" }; void f(char *z[ ]) { cout＜＜*z++＜＜end1; } int main ( ) { char **y; y=x; f(y); return 0; }A．产生语法错误B．FirstC．SecpndD．Third
下列选项中，修改表名的基本语法格式是A．ALTER TABLE表名 MODIFY 字段名1 FIRST|AFTER 字段名2B．EXEC sp_name 旧表名，新表名C．ALTER TABLE表名 CHANGE字段名1 数据类型 FIRST|AFTER 字段名2D．ALTER TABLE表名 CHANGE字段名1 数据类型 FIRST|AFTER 字段名2