public static void main(String[] args) {
int c0=0, c1=0, c2=0;
for(int x=1; x<=20; x++) {
switch(x%3) {
case 0: c0++; break;
case 1: c1++; break;
case 2: c2++; break;
}
}
System.out.println("c0,c1,c2="+c0+","+c1+","+c2);
}
Examine the structure of the EMPLOYEES table:
EMPLOYEE_ID NUMBER NOT NULL, Primary Key
EMP_NAME VARCHAR2(30)
JOB_ID NUMBER\
SAL NUMBER
MGR_ID NUMBER References EMPLOYEE_ID column
DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You created a sequence called EMP_ID_SEQ in
orderto populate sequential values for the EMPLOYEE_ID column of the EMPLOYEES table. Which two statements regarding the EMP_ID_SEQ sequence are true? （）
Examine the data of the EMPLOYEES table.
EMPLOYEES (EMPLOYEE_ID is the primary key. MGR_ID is the ID of managers and refers to the EMPLOYEE_ID)
Which statement lists the ID, name, and salary of the employee, and the ID and name of the employee's manager, for all the employees who have a manager and earn more than 4000?（）
可以使用哪个编辑修改器改变面的ID号。
可以使用哪个编辑修改器不能改变面的ID号？（ ）。
在Word 2016中，如果要在文档中加入一幅图片，可单击（ ）选项卡→“插图”功能区中的“图片”按钮。
【考查知识点：无穷小量】
【考查知识点：函数单调性】
函数
的单调增加区间是（ ）
【考查知识点：函数单调性】
【考查知识点：最值】
【考查知识点：函数单调性】
函数y=（x+1）2在区间（-2,2）是（ ）
【考查知识点：函数单调性】
函数y=ln(1+x2)的单调减少区间是（ ）
【考查知识点：函数单调性】
函数
在区间（-∞，3）内是（ ）
1．绘制影响线采用的是（ ）。
public static void main(String[] args) {
int c0=0, c1=0, c2=0;
for(int x=1; x<=20; x++) {
switch(x%3) {
case 0: c0++; break;
case 1: c1++; break;
case 2: c2++; break;
}
}
System.out.println("c0,c1,c2="+c0+","+c1+","+c2);
}
Examine the structure of the EMPLOYEES and DEPARTMENTS tables:
EMPLOYEES
EMPLOYEE_ID NUMBER
DEPARTMENT_ID NUMBER
MANAGER_ID NUMBER
LAST_NAME VARCHAR2(25)
DEPARTMENTS
DEPARTMENT_ID NUMBER
MANAGER_ID NUMBER
DEPARTMENT_NAME VARCHAR2(35)
LOCATION_ID NUMBER
You want to create a report displaying employee last names, department names, and locations. Which query should you use?（）
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