下列哪一项不是呼吸监测的主要指征（）。 A.神志不清 B.少尿 C.血气状况进行性恶

看图写单词。

___________    ___________          ___________        ___________      ___________

要想了解中国古代的军事，探索战争的规律，下列朝代中，我们最应该关注的是[ ]

A．夏朝

B．商朝

C．春秋

D．战国

Why Exercise Is Cool?

1. Exercise Strengthens Muscles

Did you ever do a push-up or swing across the monkey bars at the playground?    小题1:   By using your muscles to do powerful things, you can make them stronger. For older teens and adults, this kind of workout can make muscles bigger, too.

2.    小题2:  

Can you touch your toes easily without yelling ouch? Most kids are pretty flexible, which means that they can bend and stretch their bodies without much trouble. Being flexible is having “full range of motion,” which means you can move your arms and legs freely without feeling tightness or pain.

3. Exercise Keeps the Balance

   小题3: Your body needs a certain amount of calories every day just to function, breathe, walk around, and do all the basic stuff.   小题4:   If you’re not very active, your body won’t need as many calories.

Whatever your calorie need is, if you eat enough to meet that need, your body weight will stay about the same. If you eat more calories than your body needs, it may be stored as extra fat.

4. Exercise Makes You Feel Good

It feels good to have a strong, flexible body that can do all the activities you enjoy—like running, jumping, and playing with your friends. It’s also fun to be good at something, like scoring a basket, hitting a home run, or perfecting a dive.

But you may not know that exercising can actually put you in a better mood.   小题5:  It’s just another reason why exercise is cool!

A．So you want to do some aerobic (有氧的) exercise right now?

B．Food gives your body fuel in the form of calories, which are a kind of energy.

C．When you exercise, your brain releases a chemical, which may make you feel happier.

D．Those are exercises that can build strength.E. Exercise Makes You Flexible

F. Exercise Makes Your Heart Happy

G. But if you’re active, your body needs an extra measure of calories or energy.

计算机系和教务处要对某数据库进行访问，计算机系全体教师对此数据库中的全部数据具有查询权，教务处全体人员对此数据库中全部数据具有查询、插入、删除和修改权。在SQL Server 2000中，下列安全控制方法最合理的是______。

A．为计算机系和教务处分别建立一个角色，将两个部门的每个职工设置为相应角色中的成员。为计算机系角色授予每个表的SELECT权，为教务处角色授予每个表的SELECT、INSERT、DELETE和UPDATE权

B．为计算机系和教务处分别建立一个角色，将两个部门的每个职工设置为相应角色中的成员。将计算机系角色和教务处角色设置为此数据库的db_datareader角色中的成员，将教务处角色设置为此数据库的db_datawriter角色中的成员

C．为计算机系每个教师授予每个表的SELECT权，为教务处全体人员授予每个表的SELECT、INSERT、DELETE和UPDATE权

D．将计算机系和教务处的每个职工都设置为db_owner角色中的成员

爆破片的工作原理相当于用局部破坏换取整体安全。相比安全阀来说，通常使用的环境更为恶劣。