A program for numerical control consists of a sequence of（)that causes an NC machine

A.float

B.numeri

C.real

D.int

某数据库系统中，假设有部门关系 Dept (部门号，部门名，负责人，电话)，其中， "部门号"是该关系的主键；员工关系 Emp (员工号，姓名，部门，家庭住址)，属性"家 庭住址"包含省、市、街道以及门牌号，该属性是一个（）属性。 创建 Emp 关系的 SQL 语句如下: CREATE TABLE Emp(员工号 CHAR(4) （）， 姓名 CHAR(10)， 部门 CHAR(4)， 家庭住址 CHAR(30)， （）; 为在员工关系 Emp 中增加一个"工资"字段，其数据类型为数字型并保留2 位小数， 可采用的 SQL 语句为（）。

A. 简单 B. 复合 C.多值 D. 派生A. PRIMARY KEY B. NULL C. FOREIGN KEY D. NOT NULLA.PRIMARY KEY NOT NULLB. PRIMARY KEY UNIQUEC. FOREIGN KEY REFERENCES Dept(部门名)D. FOREIGN KEY REFERENCES Dept(部门号)A.ALTER TABLE Emp ADD 工资 CHAR(6,2);B.UPDATA TABLE Emp ADD 工资 NUMERIC(6，2);C.ALTER TABLE Emp ADD 工资 NUMERIC （6,2）;D.ALTER TABLE Emp MODIFY 工资 NUMERI C(6,2);

A.The compensation program

B.The training program

C.The employee referral program

D.The marketing program

The term "______ program" means a program written in high-level language.

A．compiler

B．executable

C．source

D．object

A(68)program is usually described as a program written in high-level language.

A．compiler

B．executable

C．source

D．object

“863”计划(863 program)

A.financial program

B.educational program

C.cultural exchange program

D.both B and C

The term“(67)program”means a program written in high-level language．

A．compiler

B．executable

C．source

D．object

● The difference between a project and a program is that:

A A program is made up of multiple projects

B A program requires at least three times longer to plan than a project

C A project is a one-shot deal while a program is on-going

D A and C

E B and C

A computer program, orjust a program, is a sequence of (75) ,written to performa specified task with a computer.

A.languages

B.instructions

C.programs

D.functions