下列化学方程式书写正确的是（ ） A．3CO+Fe2O3高温.2Fe+2CO2

最常见的子宫肌瘤为

A．40岁，单侧囊性包块，直径4cm
B．28岁，双侧囊实性包块，直径8cm，活动
C．50岁，子宫后陷凹有不平、实性结节，有腹水
D．35岁，痛经，后陷凹有结节
E．30岁，原发不孕，低热，腹水，盗汗，消瘦

补全对话。（共4小题，每小题1分；计4分）

Li Yang: Good morning. Mathew.

Mathew: Good morning, Li Yang.    小题1:  

Li Yang: There's still smog (雾霾) today. We'll have to go to school with face masks(口罩).

Mathew:    小题2: According to the news, PM2.5 pollution is the main problem with air pollution.

Li Yang: Yes, and air pollution has done harm to people's health.

Mathew: So the Chinese government and Chinese people must take action to fight it.

Li Yang:    小题3:   

Mathew: Yeah. Since PM2.5 is mainly caused by vehicles(机动车)and factories, cars with large

emissions(排放)should not be allowed and factories should be closely watched.

Li Yang: I agree.  小题4:   And we suggest making the blue skies return for good.

Mathew: I hope so, too.

处方中外文缩写qid．的中文含义是（）。

A.每小时

B.隔日1次

C.每日4次

D.每4小时1次

E.每日3次

结构化开发生命周期法是采用什么方法形成整个系统的信息模型的

A．自顶向下

B．自底向上

C．自顶到底

D．自上到下

简述滚动计划的编制方法。