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听力原文：Sometime, only a slip of one's pen will cost a huge loss, especially for some important projects.
(27)

A minor mistake can have a huge influence.
B. A slip of one's pen can make important project.
C. A minor mistake won't cause a huge influence.
D. One can neglect minor mistakes.

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How could so many killing have been carried out without drawing attention？

A. The cult acted secretly.
B. The government officials did not see through its dangerous nature.
C. There were no preventive measures.
D. People were frightened.

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A．In tents.B．In university buildings.C．In a hospital.D．In an auditorium.

A. In tents.
B. In university buildings.
C. In a hospital.
D. In an auditorium.

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A．To transport water to higher elevation.B．To provide air-conditioning.C．To bring nutr

A. To transport water to higher elevation.
B. To provide air-conditioning.
C. To bring nutrients to the soil.
D. To adjust the soil temperature.

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In seeking the interpretation of these most interesting and elaborate adaptations, attempts have been made along two lines. The first seeks to explain the effect as a result of the direct influence of the environment upon the individual (G. L. L. Buffon), or by the inherited effects of efforts and the use and disuse of parts (J. B. P. Lamarck). The second believes that natural selection produced the result and afterwards maintained it by the survival of the best concealed in each generation. The former suggestion breaks down when the compl

A. hunters
B. nocturnal predators
C. lions and tigers
D. insectivorous Vertrbrata

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听力原文：Sometime, only a slip of one's pen will cost a huge loss, especially for some important projects.(27)

A minor mistake can have a huge influence. B. A slip of one's pen can make important project. C. A minor mistake won't cause a huge influence. D. One can neglect minor mistakes.

How could so many killing have been carried out without drawing attention？

A．In tents.B．In university buildings.C．In a hospital.D．In an auditorium.

A．To transport water to higher elevation.B．To provide air-conditioning.C．To bring nutr

听力原文：Sometime, only a slip of one's pen will cost a huge loss, especially for some important projects.
(27)

A minor mistake can have a huge influence.
B. A slip of one's pen can make important project.
C. A minor mistake won't cause a huge influence.
D. One can neglect minor mistakes.