自发性细菌性腹膜炎常见致病菌应是（） A.大肠杆菌和副大肠杆菌 B.溶血链球菌和肺炎

如图是测量某物块质量的实验，小宇把天平放在水平桌面上，调节天平平衡，天平的指针对准分度盘中央的刻度线，请你指出小宇操作错误的是：　　；纠正错误后，要使天平重新平衡，应将平衡螺母向　　（填“左”或“右”）调节．

简述中间储仓式制粉系统的停止顺序。

根据所给汉语，完成英语句子。每空填一词。

1. 我们应该尽力节约用水。

    We should try _____  _____ water as much as we can.

2. 我认为森林不适合人类居住。

    I think the forest isn't _____  _____ people to live in.

3. 我以前从没有听说过这个故事。

    I have never _____ _____  this story before.

4. 我们反对在我们的家乡建化工厂。

    We are _____ _____ chemical factories in our hometown.

5. 解决这个问题对我来说很困难。

    It's difficult for me to _____ _____ this problem.

(三)

When you are in another country, it is important to know the language, but it is equally important to know how to communicate nonverbally, before saying anything by making gestures. According to a pioneer in nonverbal communication, only 20 to 35 percent of our communication is verbal. When people don’t know the language, the" most common way to communicate is through gestures. However, many gestures have different meanings, or no meaning at all in different parts of the world.
In the United States, for example, nodding your head up and down means "yes". In some parts of Greece and Turkey, however, this motion can mean "no”. In Southeast Asia, nodding your head is a polite way of saying "I’ve heard you".
"In ancient Rome, when the emperor wanted to spare someone’s life, he would put his thumb up. Today in the United States, when someone puts his/her thumb up, it means "Everything is all right". However, in Sardinia and Greece, the gesture is insulting and should not be used there.
In the United States, raising your clasped hands above your head means "I’m the champion" or "I’m the winner". It is the sign prizefighters make when they win a fight. When a leading Russian statesman made this gesture after a White House meeting, Americans misunderstood and thought he meant he was a winner. In Russia, however, it is a sign of friendship.
In the United States, holding your hand up with the thumb and index finger in a circle and the other three fingers spread out means "Everything is OK" and is frequently used by astronauts and politicians. In France and Belgium, it can mean "You’re worth nothing. "
There are other nonverbal signals that people should be aware of when they go to another country, such as the distance to maintain between speakers. Americans usually feel comfortable when speaking with someone if the distance between them is about eighteen inches to arm’s length. Anything closer makes them feel uncomfortable.
When talking to Americans, it is also important to make eye contact. If you look down when talking to an American, he/she may feel that you are embarrassed, afraid, or trying to hide something.
In addition to knowing how to communicate nonverbally in a country, it is important to know what you and he cannot discuss. In the United States, there are certain topics to avoid when you first meet someone, For example, don’t ask people their age, weight, religion, marital status, how much money they earn, or how much something costs. You can talk about work, the weather, traffic problems, sports, food, news of the day, where one lives, consumer subjects (computers, car repairs, and so forth), and travel or vacation plans.
These few examples illustrate that your actions can speak louder than your words. In a particular cultural contest, what you say and what you don’t say are equally important.

The main idea of the passage is that when you are in another country, ______.

A．it is unimportant to know the language

B．it is important to know what you can talk about to a foreigner

C．to know how to communicate nonverbally is as important as to know the language

D．to communicate the rough gestures is more important than to know the language

钢铁投资建设项目的最低条件之一为：烧结机使用面积达到180m²及以上、焦炉炭化室高度达到4.3m及以上、高炉容积达到1000m³及以上、转炉容积达到( )t及以上、电炉达到60t及以上。

A．200

B．300

C．150

D．100