Teams are required for most engineering projects. Although some small hardware or software products can be developed by individuals, the scale and complexity of modem systems is such, and the demand for short schedules so great, that it is no longer ( ) for one person to do most engineering jobs. Systems development is a team ( ) , and the effectiveness of the team largely determines the ( ) of the engineermg.
Development teams often behave much like baseball or basketball teams. Even though they may have multiple specialties, all the members work toward ( ) . However, on systems maintenance and enhancement teams, the engineers ofen work relatively independently, much like wrestling and track teams.
A team is ( ) just a group of people who happen to work together. Teamwork takes practice and it involves special skills. Teams require common processes; they need agreed-upon goals; and they need effective guidance and leadership. The methods for guiding and leading such teams are well known, but they are not obvious.
问题1选项
E-mail地址由分隔符“()”分为前后两部分,分别指明用户名及邮件
某 html 文档中有如下代码,则在浏览器中打开该文档时显示为( )。
<form>
Listl:
<input type="text" name="List1" />
<br / >
List2:
<input type="text" name="List 2 " />
< /form>
设有商品关系P(商品名,条形码,供应商号,价格,数量), “条形码”唯一标识关系P中的每一个元组,商品名不能为空,供应商号是关系P的外键。另有供应商关系S(供应商号,供应商名,地址,电话)。关系 P 中的商品名是唯一的。建立商品关系 P 的 SQL语句如下所示:
CREATE TABLE P( 商品名CHAR(30)( ),
条形码CHAR(30) ( ) ,
供应商号 CHAR(5) ,
价格 CHAR(20) ,
数量CHAR(20)
( )(供应商号) REFERENCES S(供应商号));
查询供应商及价格小于等于 2500 元且大于等于 1280 元的“电冰箱”的数量的SQL语句为:
SELECT商品名,供应商名,价格,数量
FROM P
WHERE商品名= ’电冰箱’ AND ( ) ;
将供应商号“12021”所供应的商品价格上涨3%的SQL语句为:
UPDATE P
( )
WHERE 供应商号= ’12021’;
查询供应商地址包含“西安”的供应商名及电话的SQL语句为:
SELECT供应商名,电话
FROM S
WHERE ( );
函数f()、g()的定义如下所示。已知调用f时传递给其形参x的值是1,若以传值方式调用g,则函数f的返回值为( );若以传引用方式调用g,则函数f的返回值为( )。