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单选题
When the average of a list of course grades is multiplied by the number of courses, the result is n. What does n represent?
A
Half the number of courses
B
Half the sum of course grades
C
The number of courses
D
The average of the course grades
E
The sum of the course grades
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解析：
利用平均值的计算公式，分析题目中的数量关系，即可得出答案。
利用平均值的计算公式，分析题目中的数量关系，即可得出答案。
更多 “单选题When the average of a list of course grades is multiplied by the number of courses, the result is n. What does n represent?A Half the number of coursesB Half the sum of course gradesC The number of coursesD The average of the course gradesE The sum of the course grades” 相关考题
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The “rudder adjustment” control on an autopilot steering stand is used to ______.A.align the rudder angle indicator with the true rudder angleB.set the number of degrees of rudder per degree of course errorC.set the departure from base course before actuating the rudderD.set the rate at which the rudder responds
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阅读下面程序import javax.swing.JOptionPane；public class Comparison{public static void main(String args[]){String firstNumber, //用户输入第1个数据变量second Number, //用户输入第2个数据变量result； //输出结果变量int number1， //用于比较的第1个数number2； //用于比较的第2个数//用户输入第1个数据的字符串firstNumber=JOptionPane. showInputDialog(“输入第1个整数：”)；//用户输入第2个数据的字符串secondNumber=JOptionPane.showlnputDialog(“输入第2个整数：”)；//将字符串转换为整数类型number1=Integer.parseInt(firstNumber)；number2=Integer.parseInt(secondNumber)；//初始化结果变量___________________;//比较两个数据if(number1＝number2)result += number1 +" =" + number2;if(number1 != number2 )result += numberl +" !=" + number2;if( number1 ＜ number2 )result = result + "\n" + numberl +" ＜" + number2;if(number1 ＞ number2 )result = result + "\n" + number1 + "＞" + number2;if( number1 ＜= number2 )result = result + "\n" + number1 +" ＜=" + number2;if (number1 ＞= number2 )result = result + "\n" + number1 + "＞=" + number2;//显示结果JOptionPane.showMessageDialog(null,result," 比较结果",JOptionPane. INFORMATION_MESSAGE);System.exit(0);}}为使程序能正确运行并得到合理的输出结果，初始化结果变量语句(下划线处)应是A．result = ""B．result = nullC．result = number1D．result = number2
考题
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考题
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考题
EIGRP has been configured to opera te over Frame Relay multipoint connections. What should the bandwidth command be set to?()
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考题
Zhang Jun's teacher suggests that he take a(n)__________language course to improve his English.
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考题
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考题
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考题
单选题When the average of a list of course grades is multiplied by the number of courses, the result is n. What does n represent?A
Half the number of coursesB
Half the sum of course gradesC
The number of coursesD
The average of the course gradesE
The sum of the course grades
考题
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SELECT AVERAGE(gpa) FROM student_grades WHERE semester _ end '01-JAN-2000' and semester end 31-DEC-2000';B
SELECT COUNT(gpa) FROM student grades WHERE semester _ end '01-JAN-2000' and semester end 31-DEC-2000';C
SELECT MIN(gpa) FROM student grades WHERE semester _ end '01-JAN-2000' and semester end 31-DEC-2000';D
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SELECT MEDIAN(gpa) FROM student_grades WHERE semester _ end '01-JAN-2000' and semester end 31-DEC-2000';
考题
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equal to half the number of IVR ports B
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单选题A
The length of the course.B
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port numberB
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单选题EIGRP has been configured to opera te over Frame Relay multipoint connections. What should the bandwidth command be set to?（）A
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the CIR rate of the lowest speed connectionC
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the sum of all the CIRs divided by the number of connections
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40%B
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80%D
120%E
150%
考题
单选题The average (arithmetic mean) of a set of seven numbers is 81. If one of the numbers is discarded, the average of the remaining numbers is 78. What is the value of the number that was discarded?A
98B
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