常用的加药方式有几种？为什么？

We know health and happiness are important in everyone’s life. Here are some ways to make them easy.

Eat a balanced diet(平衡饮食). Eat a lot of fruit and vegetables, some grains(谷物) and a little meat.

Exercise twice or three times a week.

Get enough sleep. It is best to get eight hours’ sleep a day.

Keep yourself busy. This is good because it stops you from having bad habits. To keep yourself busy, you can walk around the house, spend time with your pets, do a sport, or do a hobby you enjoy.

Go out and make friends. Spend time and have fun with them. Talk with them, but you must be sure not to talk about anything bad. You should stay with the people who are healthy and happy themselves.

小题1:How often should you exercise if you want to get health and happiness?

A．Every day .

B．Twice a day

C．Twice or three times a week .

D．Three times a month.小题2:How many hours do you need to sleep every day?

A．Seven.

B．Eight.

C．Nine.

D．Ten小题3:The underlined word “it”referes to (指的是)“     ”.

eating a balanced diet.  B.exercising more  C. keeping yourself busy  D.making friends

小题4:Whice of the following is NOT true?

A．We should eat a lot of meat to keep healthy.

B．We should exercise to keep healthy.

C．The people whom we make friends with must be healthy and happy themselves.

D．We can spend our free time doing a sport or doing hobby we enjoy.小题5:Which is the best title(标题) for the passage?

A．Eating Habit

B．Healthy Lifestyle

C．Making friends

D．Ways to Have Health and Happines

患儿男，10岁。3天来体温持续升高，达40℃，伴腹痛、腹泻，里急后重，大便每日十余次，量少，为黏液脓血便。此患者最可能的诊断是（）

A.肝炎

B.伤寒

C.结肠炎

D.斑疹伤寒

E.细菌性痢疾

战列舰为什么会衰落？

原发性免疫缺陷病的病因不符合的是()

A．遗传因素

B．与人类获得性免疫(HLA)有关

C．宫内感染

D．营养不良

E．贫血

为保护操作系统运行，将指令系统中的指令分成特权指令和非特权指令。下列指令中，哪一个不是特权指令？（）

A．启动设备执行I/O操作指令

B．算术运算指令

C．设置中断向量指令

D．修改程序状态字指令