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[主观题]

Which of the following hypotheses about the relation-ship between the temperature and the

density of a solidis best supported by the data in Figure 2 ？ As the tem-perature of a solid increases, the density of the solid:

A.increases only.

B.decreases only.

C.increases, then decreases.

D.decreases, then increases.

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According to Study 3, compared with the correspond-ing average reflectance for small plume

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第2题

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第3题

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第4题

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第5题

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第6题

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