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问题 选择题

下列四组词语中，错别字为两个的一组是    (    )

A．磬竹难书 装潢 成绩斐然 翔实

B．高屋建瓴拖踏 惨绝人圜 茶毒

C．鸠占雀巢搭讪因噎废食 慰籍

D．拾人牙慧肯綮事必躬亲荏苒

答案

Ｃ

(A磐一罄；B踏一沓，圜一寰，茶一荼；Ｃ雀一鹊，籍一藉)

填空题

Complete the sentences with the given words in their suitable forms. (共8分)

小题1:Some parents purchase new _______________ (toy) for their kids before Christmas.

小题2:All the classmates took the difficult exam, but only _______________ (fifth) of them passed.

小题3:They were proud to say these paintings belonged to _______________ (they).

小题4:The professor made an interesting _______________(speak) at the meeting. 

小题5:Children were fond of reading _______________ (excite) stories in their free time. e

小题6:They had a(n) _______________ (happy) trip because of the bad weather.

小题7:PM2.5 is _______________ (main) caused by air pollution in some parts of the country.

小题8:The doctor is ready to _______________ (operation) on his broken leg.

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填空题

阅读以下说明和C++代码，将应填入______处的语句或语句成分写在对应栏内。
[说明]
某数据文件students.txt的内容为100名学生的学号和成绩，下面的程序将文件中的数据全部读入对象数组，按分数从高到低进行排序后选出排名前30%的学生。
[C++代码]
#include ＜iostream＞
#include ＜fstream＞
#include ＜string＞
using namespace std;
class Student
private:
string sNO; //学号
int credit;//分数
public:
Student(string a,int b)sNO=a;credit=b;
Student()
int getCredit();
void out();
;
______::getCredit()
return credit;

______::out()
Cout＜＜"SNO:"＜＜sNO＜＜",Credit="＜＜credit＜＜endl;

class SortStudent
public:
void sort(Student *s,int n);
SortStudent()
;
void SortStudent::sort(Student *s,int n)
for(int i=0;i＜n-1;i++)
for(int j=i+1;j＜n;j++)
if(s[i].______＜s[j].______＞
Student temp=s[i];s[i]=s[j];s[j]=temp;



int main(int argc,char* argv[])

const int number=100; //学生总数
ifstream students;
students.open("students.txt");
if(!students.is open())
throw 0;

Student *testStudent=______[number];
int k=0;
string s;
while(getline(students,s,’\n’))//每次读取一个学生的学号和成绩
Student student(s.substr(0,s.find(’,’)),atoi(s.substr(s.find(’,’)+1).c_str()));
testStudent[k++]=student;

Students.closeo;
______;
ss.sort(testStudent,k);
cout＜＜"top 30%:"+endl;
for(k=0;k＜number*0.3;k++)
testStudent[k].out();

delete[]testStudent;
return 0;
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