which of the following is unconstitutional in the united states?A. Public money is provided to support religious schools.B. Non-Catholics can go to Catholic-run schools.C. Catholics can build their own schools and hospitals.D. Women have the right to abor

第1题：

阅读下列说明和C++代码，将应填入 （n） 处的字句写在答题纸的对应栏内。
【说明】
某大型购物中心欲开发一套收银软件，要求其能够支持购物中心在不同时期推出的各
种促销活动，如打折、返利（例如，满300返100）等等。现采用策略（Strategy）模式实现该要求，得到如图5-1所示的类图。



图5-1 策略模式类图

【C++代码】
#include
using namespace std;
enum TYPE{NORMAL, CASH_DISCOUNT, CASH_RETURN};
class CashSuper{
public:
（1）;
};
class CashNormal : public CashSuper { //正常收费子类
public:
double acceptCash(double money) {
retum money; }
};
class CashDiscount : public CashSuper {
private:
double moneyDiscount; // 折扣率
public:
CashDiscount(double discount) { moneyDiscount=
discount; }
double acceptCash(double money) { retum money *
moneyDiscount; }
};
class CashRetum : public CashSuper { // 满额返利
private:
double moneyCondition; // 满额数额
double moneyReturn; // 返利数额
public:
CashRetnm(double
motieyCondition, double moneyReturn) {

this->moneyCondition=moneyCondition;

this->moneyReturn=moneyRetum;
}



double acceptCash(double
money) {
double result =
money;

if(money>=moneyCondition)

result=money-(int)(money/moneyCondition ) * moneyRetum;
return
result ;
}
};
class CashContext {
private:
CashSuper *cs;
public:
CashContext(int type) {
switch(type) {
case
NORMAL: //正常收费
(2)
;
break;
case CASH_RETURN: //满300返100
(3)
;
break;
case CASH_DISCOUNT: //打八折
(4)
;
break;
}
}
double GetResult(double money) {
(5) ;
}
};
//此处略去main（ ）函数

答案：

解析：

（1）virtual double acceptCash(double money) = 0
（2）cs = new CashNormal()
（3）cs = new CashReturn(300,100)
（4）cs = new CashDiscount(0.8)
（5）return cs->acceptCash(money)
试题分析：
策模式的结构图如下：

第2题：

On which of the following did the Justices agree，according to Paragraph 4？( )

A.Federal officers’duty to withhold immigrants’information.
B.States’independence from federal immigration law.
C.States’legitimate role in immigration enforcement.
D.Congress’s intervention in immigration enforcement.

答案：C

解析：

第3题：

下面选项中，更新account表中money字段值，其取值在100-200之间，现在将money字段值增加50，能够正确执行上述要求的SQL语句是

A．update account set money + 50 where money ＞=100 and money ＜=200;

B．update account set money = money + 50 where money ＞=100 or money ＜=200;

C．update account set money = money + 50 where money between 100 and 200;

D．update account set money = money + 50 where money ＜=200 and money ＞=100;

第4题：

第5题：

On which of the following did the Justices agree，according to Paragraph 4？( )

A.Federal officers’duty to withhold immigrants’information
B.States’independence from federal immigration law
C.States’legitimate role in immigration enforcement
D.Congress’s intervention in immigration enforcement

答案：C

解析：

第6题：

下面哪条语句，可以产生与下面程序相同的结果。 data invest; money=1000; do until（money gt 5000); Year+1; money+（money*0.10); end; run;

A．do while(money ge 5000);

B．do while(money =5000);

C．do while(money le 5000);

D．do while(money ＞5000);