题目：ICMP is short for Internet（1）Message Protocol,and is an integral part of the Internet (72) suite (commonly referred to as TCP/IP).It is a (73) Iayer protocol used By network devices to diagnose network communication issues. IP is not designed to be absolutely reliable. ICMP is to provide feedback about problems in the communication environment, not to make IP（2）。One of the most well-known and useful message messages in an ICMP datagram is the Destination（3）which is generated for several reasons, including unable to reach a network, a host, a port, or a protocol。

题目：ICMP is short for Internet（1）Message Protocol,and is an integral part of the Internet (72) suite (commonly referred to as TCP/IP).It is a (73) Iayer protocol used By network devices to diagnose network communication issues. IP is not designed to be absolutely reliable. ICMP is to provide feedback about problems in the communication environment, not to make IP（2）。One of the most well-known and useful message messages in an ICMP datagram is the Destination（3）which is generated for several reasons, including unable to reach a network, a host, a port, or a protocol。

题目：ICMP is short for Internet（1）Message Protocol,and is an integral part of the Internet (72) suite (commonly referred to as TCP/IP).It is a (73) Iayer protocol used By network devices to diagnose network communication issues. IP is not designed to be absolutely reliable. ICMP is to provide feedback about problems in the communication environment, not to make IP（2）。One of the most well-known and useful message messages in an ICMP datagram is the Destination（3）which is generated for several reasons, including unable to reach a network, a host, a port, or a protocol。

题目：ICMP协议是TCP/IP网络中的(40)协议，其报文封装在 (41)协议数据单元中传送。

题目：ICMP协议是TCP/IP网络中的(40)协议，其报文封装在 (41)协议数据单元中传送。

题目：采用两个相位调制出两种信号进行数据传输的技术是(19)这种调制情况下数据速率是码元速率的(20)倍。

题目：采用两个相位调制出两种信号进行数据传输的技术是(19)这种调制情况下数据速率是码元速率的(20)倍。

题目：以下关于信息的描述，错误的是(1)。

题目：[问题2] (7分)  以下所示是根据员工工号查询工资并显示的程序代码片段，调整完工号为A001002的员工工资后，根据工号查询并显示该员工的详细工资信息，如表4-3所示。请将(9)-(15)的空缺代码补齐。salarySearch.asp代码片段: 说明:rs为结果集对象，Conn为数据库连接对象，定义和获取 <% condition =request.form("condition")’注释:获取查询条件，即工号 sql=”select empID as id，empName,department，salary from employeeSalary where empID=‘’‘ &(9)&’‘’ rs .open sql,conn If Not rs .eof Then empID=rs(’'（10)“)  empName=rs(”empName”)  department=rs(”department”)  salary.rs(”salary”)  (11) rs .close %> …… <table width="80%” border=”1” align=”center'’cellpadding=”0”cellspacing="0”>  <tr>  <td colspan=”（12），’height="30" align=.(13)‘，’>员工工资查询结果</td>  </tr>  <tr>  <td width="25%" height="30">工号<</td>  <td width="25%" height="30">姓名</td>  <td width="25%" height="30">部门</td>  <td width=”25% ” height="30”align="center"> (14 ) </td>  </tr>  <tr>  <td width=”25%” height=”30” align= ”center"><%= ( 15)%></td>  <td width=”25%” height=”30” align= ”center"><%=empName%></td>  <td width=”25%” height=”30” align= ”center"><%=department%></td>  <td width=”25%” height=”30” align= ”center'’><%=salary%></td>  </tr> </table> (9)~(15)的备选答案: A.工资/月B . end if C .empID D.center E .id F .4 G .left H .condition 

题目：[问题1] (8分)  以下所示代码为实现员工工资调整的代码片段，当公司决定为工号A001002的员工每月工资增加300元时，图4-1为输入操作页面截图。请将(1)-(8)的空缺代码补齐 salaryEdit. asp代码片段: <form name=”form”method="post” action=(1)”  <div class=”cont_title”>  <p>员工工资调整<</p> </div> <div>  <span>工号<</span>  <input type="text" name=”(2)”/> </div> <br> <div>  <span>额度<</span>  <input type=”text" name=”number'’/>  (3) <br> <div> <span>类型<</span> <select name=”change_type”> <option value="add">增加</option>  <option value="dec">减少<</option>  (4) </div> </br> <div class=”c”> <input type="submit" id="button" name="button" value='，提交”/> </div> </form> salarySave.asp代码片段: empID=request.form(”empID”) change_num =request.form("(5)”)’注释:获取调整额度 change_type =request.form(”change_type”) if change_type="(6)" then’注释:当类型选择增加时 sql="update (7) set salary=salary+”& (8) &”where empID=”’&empID&””’ end if conn.execute(sql) '注释:执行数据更新 说明:其他代码省去  (1)-(8)的备选答案:  A.</div> B .number C .salaxySave.asp  D·change_num E .add F.</select>  G·empID H .employeeSalary I.A001002  J .300