题目内容

听力原文: Good afternoon. My name is Mary Raffety. For the next eleven weeks, I will be your lab instructor. The lab experiences you will be having are designed to complement your work in Dr Kaplan's inorganic chemistry course. Today's experiment is purposely a short one; it will help you become familiar with the lab setup and equipment.
As your lab instructor, it is my duty to assist you in setting up your experiments and understanding your results. I will also grade your lab notebooks. But I have an even more basic responsibility: your physical safety. I will insist on proper precautions, such as wearing protective goggles at all times. I also expect you to use common sense: don't wear long scarves that might catch fire; don't smoke; don't taste unknown substances.
Let me reinforce this point with a story. Issac Newton, perhaps the greatest scientist of all ages, lived in a period when the toxic effects of chemicals were less understood than today. He routinely sniffed fumes, tasted chemicals, and used open containers for heating substances. In the early 1690s, he suffered through a period of insomnia, depression, and mental instability. Though his biographers linked this situation to problems in his personal life, researchers now think it was a consequence of his lab procedures; they found abnormally high concentrations of lead, mercury, and other heavy metals in preserved specimens of his hair.
Consequently, we must learn from the past and put safety first.
At what point in the semester does this talk take place?

At the beginning.
B. In the middle.
C. Near the end.
During the final exam.

查看答案
更多问题

Len Dangerfield

听力原文: South Korea has confirmed it will move its future seat of government to a rural site south of its capital Seoul. Prime Minister Lee Hai-chan told a news conference Wednesday the government has selected the Yongi-Gongju area, which lies in the center of South Korea, to be the site for the new capital.
The government plans to begin buying land for the 7,100-hectare site next year, with construction scheduled to start in 2007 and end in 2030. The government chose the site of the new capital, which has yet to be named, over two other areas because of its superior transport and environmental conditions, officials said. The presidential office and 72 other key state institutions will be located there. But other organizations, such as the National Assembly and the Supreme Court will decide whether to move or not.
President Roh Moo-hyun made relocating the capital away from crowded Seoul a key plank of his election campaign. At the time he said he believed it would help decentralize the country and boost regional development in Asia' s third-largest economy.
But the relocation—which could cost as much as $94 billion—has sparked fierce debate among rival parties, who have raised questions about the efficiency and feasibility of the project. The main opposition Grand National Party claims the government is recklessly pushing what it says is an unrealistic plan without popular support. A media survey showed that more than half of the public are opposed to the plan, citing its high costs compared with its expected effects.
Which of the following is NOT true about the new capital according to the report?

A. It's in the center area of South Korea.
B. It has excellent transport and environmental conditions.
C. The relocation will cost $94 million.
D. It is not named yet.

The expenses of higher education is paid by ______.

A. private savings
B. Low-interest loans
C. income from a part-time job
D. A combination of the above three.

Why did the man take the job at the travel agency?

A. He wanted to go to Spain.
B. He wanted to work with his friend.
C. He enjoyed travelling around the world.
D. He was rejected by the engineering firm.

答案查题题库