当集水井水位过低发出警报时，应立即手动停止自动泵，并将备用泵切自动，检查无误后再处理

当DDZ-Ⅲ型调节器处于自动状态时，测量信号与给定信号在输入电路中进行比较，然后产生偏差信号，再进入PD计算电路与PI计算电路中进行PID运算，最后经输出电路转换成（）信号输出。

A、DC

B、4～20mA.DC

C、1～5V.DC

D、0～10V.DC

Americans’ (1) impulses keep generating surprises. Charitable giving plays an even larger role in the (2) . Demand for nonprofit services gets proportionately bigger as a locality’s (3) rises. The philanthropy of the wealthy may not hinge on tax (4) to the degree many believe. The US (5) the world in levels of charitable activity. Some experts see charity as a (6) trait of the US, more than (7) or business. But those forces may be (8) , as many nonprofits, from healthcare to classical music are selling (9) in a marketplace alongside for-profit (10) . Charity is no mere (11) activity. It pays off for society in ways that may (12) the rates of return on many traditional investments. Charity not only helps those on the (13) end but also strengthens the (14) of society at large. Moreover, it appears to make the givers themselves more (15) . The pattern that conservatives are better givers than (16) is less about politics than about charity-linked (17) most common to conservatives, religious commitment, marriage and children, and entrepreneurship. The main point is that more Americans, regardless of ideology, embrace giving as a tool for (18) . The urge to make a difference, and to take (19) in it, outweighs (20) considerations.

十届人大五次会议于2007年3月在北京举行，会议将审查2007年国民经济和社会发展计划、审议政府工作报告等。材料中的审议事项表明全国人民代表大会拥有

A．立法权

B．决定权

C．任免权

D．监督权

图a.所示结构的最后弯矩图为（）。

A.图（b）正确

B.图（c）正确

C.图（d）正确

D.都不正确

请使用VC6或使用[答题]菜单打开考生文件夹proj3下的工程proj3，其中定义的Matrix是一个用于表示矩阵的类。成员函数max_value的功能是求出所有矩阵元素中的最大值。例如，若有3×3矩阵

则调用max_value函数，返回值为3。请编写成员函数max_value。

要求：

补充编制的内容写在“//********333********”与“//********666********”之间，不得修改程序的其他部分。

注意：程序最后将结果输出到文件out.dat中。输出函数writeToFile已经编译为obj文件，并且在本程序中调用。

//Matrix.h

#include ＜iostream＞

#include ＜iomanip＞

using namespace std;

const int M=18;

const int N=18;

class Matrix

int array[M][N];

public:

Matrix()

int getElement(int i,int j)constreturn array[i][j];

void setElement(int i,int j,intvalue)array[i][j]=value;

int max value()const;

void show(const char*s)const

cout＜＜endl＜＜s;

for(int i=0;i＜M;i++)

cout＜＜endl;

for(int j=0;j＜N;j++)

cout＜＜setw(4)＜＜array[i][j];

;

void readFromFile(const char*,Matrix&);

void writeToFile(char*,constMatrix&);

//main.cpp

#include"Matrix.h"

#include ＜fstream＞

void readFromFile(const char* f,Matrix& m)

ifstream infile(f);

if(infile.fail ()) cerr＜＜"打开输入文件失败!"; return;

int k;

for(int i=0;i＜M;i++)

for(int j=0;j＜N;j++)

infile＞＞k;

m.setElement(i,j,k);

int Matrix::max value()const

//********333********

//********666********

int main()

Matrix m;

readFromFile(" ",m);

m.show("Matrix:");

cout＜＜endl＜＜"最大元素:"＜＜m.maxvalue()＜＜endl;

writeToFile(" ",m);

return 0;