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[单选题]

One of the main advantages of a graphite-furnace atomizer is that（) A．it requires only vety small

A.A.it requires only vety small quantities of a sampk

B.B.it requires metal ions in aqueous solution

C.C.it does not produce background emission like a flame

D.D.it does not get hot like a flame

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更多“One of the main advantages of …”相关的问题

第1题

What's the main idea of paragraph one？A．The author is a student of an American university.

What's the main idea of paragraph one？

A．The author is a student of an American university.

B．There are differences between America and Lebanon.

C．American system of college education differs from Lebanese one.

D．Studying is hard.

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第2题

One of the main disadvantages of the corporate form. is the（)

A、professional management

B、double taxation of dividends

C、charter

D、corporation must issue stock

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第3题

The main idea of paragraph 3 is ______.A．the people in this province came from many places

The main idea of paragraph 3 is ______.

A．the people in this province came from many places

B．not many people from France or Spain came here

C．there are more Asians in this province than in the other provinces

D．the people in this province came from one place

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第4题

public class X extends Frame{ public static void main(String[] args){ X x=new X();x.p

ack();x.setVisible(true); } public X(){ setLayout(new GridLayout(2,2)); Panel p1=new Panel(); add(p1); Button b1

A.all change height and width

B.Button Two change height and Button Three change width

C.Button One change height

D.Button Four change height and width

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第5题

In the year 2100, the world is going to have a population of about 8 billion. Most scienti

sts agree that the most severe problem is food supply. Who is going to feed all these people？ Where is the food going to come from？ Are we going to have enough food？ Are we going to produce more artificial foods？ One way of improving the situation is for people to eat less meat. Why？ Because it takes 4 kilos of grain protein(蛋白质)to produce half a kilo of meat protein. Clearly, there is not going to be sufficient meat protein for 8 billion people. Therefore, it will also be necessary to change eating habits because meat is the main part of many people s food today. A possible solution to this latter problem is the soybean(大豆). The soybean plant produces beans which have a very high fat and protein content. Scientists can now make these look and taste like real meat. They can also make many other artificial products such as soybean milk, for example, which has a taste of milk and can be used in cooking in very much the same ways as cow s milk. In fact, one woman in the United States fed her family only on soybeans for a year! She gave them soybean beef, soybean chicken, soybean milk, and sometimes just soybeans. Possibly, we are all going to eat soybeans in the future and finally give up meat completely from our tables.

What is the main subject of the passage？

A．A solution to man"s food problem.

B．A solution to the population problem.

C．Advantages of soybean.

D．How to develop good eating habits.

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第6题

下面关于main（)方法的定义选项,正确的是（)。A、public static void main（String args){}B、publi

下面关于main()方法的定义选项,正确的是()。

A、public static void main(String args){}

B、public static void main(String[]){}

C、public static void main(String[] args){}