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问题 单项选择题

2011年，中国非金融领域对外投资总额从2006年的176.3亿美元上升到600.7亿美元，今年一季度达到165.5亿美元，比去年同期增加94.5%；非金融领域外商直接投资总额1160.1亿美元，2012年3月外商直接投资比去年同期减少6.1%，已连续5个月减少。对此，正确的理解是（）

①我国的对外贸易正在趋于平衡

②我国利用外资的方式不断创新

③我国对外开放水平不断提高

④我国的资本国际化不断加快

A.①②④

B.①③④

C.②③

D.③④

答案

参考答案：C

解析：本题考查我国对外贸易的有关内容。从我国非金融领域对外投资总额和非金融领域外商直接投资总额的变化中可以看出，我国利用外资的方式不断创新，我国对外开放水平不断提高，②③正确；材料不能体现出我国对外贸易正在趋于平衡和我国的资本国际化不断加快，故排除①④。故本题选C项。考点：本题考查提高开放型经济水平。

阅读理解
阅读理解。
     Jack loves to ride his bike. It's his favorite activity. But he made a big mistake last Wednesday. He
acted foolishly (愚蠢地). He did not know the safety rules. He did not think sbout keeping his body safe.
     Thingking before you act can help you avoid (避免) many accidents. Knowing what to do can keep you
or someone close to you safe. Remember that when you ride a bicycle, you share the road with trucks and
cars. Read the following rules. They can help you stay away from the risks, or chances, or getting hurt.
Title: ________
1. Always wear a helmet (头盔).
2. Don't ride on the sidewalk so you won't run into someone walking.
3. Ride on bike pathes if they are near you.
4. Always ride in the same direction as the traffic.
5. Use hand signals (信号) when you stop or turn.
6. Obey traffic lights and signals.
7. Walk your bike across busy crossings.
8. If you ride with a friend, ride one behind the other.
9. If you ride at night, use your headlights, wear light-coloredclothing,
   and make sure you have reflectors (反光镜) on your bike.
1. We know from this passage that maybe Jack _____ last Wednesday.
[ ]
A. failed an exam
B. had an accident
C. went to school by bus
D. drove to buy bike
2. The sidewalk is left for people who _____.
[ ]
A. walk
B. drive cars
C. ride bikes
D. get on the bus
3. The underlined word"risk" means _____.
[ ]
A. safety
B. turning
C. danger
D. illness
4. It's dangerous to _____ according to the rules.
[ ]

A. ride in the same direction as the traffic
B. ride side by side with someone else
C. use hand signals when you stop or turn
D. pay attention to traffic lights

5. The best title of the list will be _____.
[ ]
A. Bike Safety Rules
B. Bike Riding Club
C. Bike Riding Skills
D. Bike accident
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填空题

阅读以下说明和C++代码，填补C++代码中的空缺，将解答写在对应栏内。
[说明]
已知某公司按周给员工发放工资，其工资系统需记录每名员工的员工号、姓名、工资等信息。其中一些员工是正式的，按年薪分周发放(每年按52周计算)；另一些员工是计时工，以小时工资为基准，按每周工作小时数核算发放。
下面是实现该工资系统的C++代码，其中定义了4个类：工资系统类PayRoll、员工类Emplovee、正式工类Salaried和计时工类Hourly，Salaried和Hourly是Employee的子类。
[C++代码]
//头文件和域名空间略
const int EMPLOYEE_NUM=5;
class Employee
protected:
int emDCode; //员工号
string name; //员工姓名
double salary; //周发放工资
public:
Employee(const int empCode,const string ＆name)
this-＞empCode=empCode; this-＞name=name;

virtual～Employee()
virtual void pay()=0;
double getSalary()return this-＞salary;
;
class Salaried ______
private: double payRate; //年薪
public:
Salaried(const int empCode,const string &name,double payRate)
:Employee(empCode,name)
this-＞payRate=payRate;

void pay()
this-＞salary=______;//计算正式员工的周发放工资数
cout＜＜this-＞name＜＜":"＜＜this-＞salary＜＜endl;

;
class Hourly ______
private:
double payRate; //小时工资数
int hours; //周工作小时数
public:
Hourly(const int empCode, const string &name, int hours,double payRate)
:Employee(empCode,name)
this-＞payRate=payRate;this-＞hours=hours,

void pay()
this-＞saiary=______;//计算计时工的周发放工资数
cout＜＜this-＞name＜＜"::＜＜this-＞salary＜＜endl;

;
class PayRoll
public:
void pay(Employee* e[])
for (int i=0; i＜EMPLOYEE_ NUM; i++)
e[i]-＞pay();

;
int main()
PayRoll* payRoll=new PayRoll;
______ employees[EMPLOYEE_ NUM]=
new Salaried(1001,"Zhang San",58000.00),
//此处省略对其他职工对象的生成
new Hourly(1005,"L1",12,50.00),
;
payRoll-＞pay(______);
double total=0.0;
for(int i=0;i＜EMPLOYEE_ NUM;i++)
(total+=employees[i]-＞getSalary(); //统计周发放工资总额
cout＜＜"总发放额="＜＜total＜＜endl;
delete payRoll; retum 0;
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