Which utensil is used first?

A．The knife.

B．The fork.

C．The spoon.

D．The one farthest from the plate.

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参考答案

答案解析

细节题。题干：哪种餐具最先使用?定位到文章的第二个规则，介绍餐具用法的第一句：“Start with the knife．fork or spoon furthest from your plate，and work your way in．”从离你盘子最远的刀、叉或者汤匙开始用。原文中的furthest from your plate和选项中D选项的farthestfrom the plate为同一个意思，都说的是从离盘子最远的餐具开始使用。因此正确答案应选D。

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3 请根据短文的内容，回答题。

Bringing Nanotechnology to Health Care for the Poor

Nanotechnology uses matter at the level of molecules and atoms. Researchers are finding different uses for particles with a length of one nanomcter, or one-billionth of a meter, These include things like beauty products and dirt-resistant clothing. But one area where many experts believe nanotechnology holds great promise is medicine.
Last week, speakers at a program in Washington discussed using nanotechnology to improve health care in developing countries. The program took place at the Woodrow Wilson International Center for Scholars. Peter Singer at the University of Toronto says a nanotechnology called quantum dots could be used to confirm cases of malaria. He says it could offer a better way than the traditional process of looking at a person's blood under a microscope.
In poor countries, this process is often not followed. As a result, sick people may get treated for malaria even if they do not have it. Such misuse of medicines can lead to drug resistance.
Quantum dots are particles that give off light when activated. Researchers are studying ways to program them to identify diseases by lighting up in the presence of a targeted molecule.
Experts say nanotechnology shows promise not just for diagnosing diseases, but also for treating them. Piotr Grodzinski of the National Institutes of Health talked about how nanotechnology could make drugs more effective. He talked about cancer drugs already developed with nanotechnology. He says if a drug can target a cancer locally in the body, then much less of it might be needed, and that means lower side effects.
Andrew Maynard is chief scientist for the Project on Emerging Nanotechnologies at the Woodrow Wilson Center. He noted that Brazil, India, China and South Africa are currently doing nanotechnology research that could help poor countries. But he also noted that there is some risk in using nano-materials. He says nanometer-sized particles behave differently in the body and the environment compared to larger particles. Experts say more investment in research is needed to better understand these risks.
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A．make beauty products and dirt-resistant clothing.

B．To produce better and lighter building materials.

C．help more accurately diagnose diseases.

D．To help more effectively treat diseases.

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