A.to set up |
B.to make people accept a belief |
C.to discover or prove |
D.to start having a relationship with others |
A.By studying Allan Hills meteorite. |
B.By using spacecraft orbiting Mars. |
C.By studying minerals gathered on Mars. |
D.By studying a meteorite on the Martian surface. |
A.Measuring the temperature of Mars. |
B.Taking photos of the surface of Mars. |
C.Finding that there is water flowing on Mars. |
D.Proving where human beings will probably land on Mars. |
A.In a biography of scientists. | B.In a geography magazine. |
C.In an environment report. | D.In a science report. |
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A.Medical researches on environment. |
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C.The only reason for the lung cancer. |
D.Poor air quality contributing to lung cancer. |
A.Compared with smoking, air pollution is more harmful. |
B.Air pollution is as harmful as smoking. |
C.It is very important to prevent people from smoking. |
D.People realize the importance of keeping healthy. |
A.16000 | B.12000 | C.8000 | D.7500 |
A.Industrialization has its weakness as well as strengths. |
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A.Say no to washing hands in the wrong way. |
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A.to dry your hands | B.to wash away the soap |
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A.support the weight of the house |
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A.the schools are responsible for the loss of handwriting |
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