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题目材料：

In most coastal regions, the level of the sea is rising in relation to the land by one to two millimeters a year, and this trend would be explained by the hypothesis that at the North and South Poles, the amount of ice that melts during the summer now exceeds the amount forms during the winter. The hypothesis is not undermined by observations that sea levels are falling relative to the Scandinavian coast by four millimeters a year. Much land in northern latitudes, including Scandinavia, is still rising in response to being freed of the enormous weight of the ice that used to cover it during the last ice age, and in Scandinavia the land is now rising faster than the sea.

第1题

In the passage, the two highlighted portions play which of the following roles?

AThe first states observation the accuracy of which is challenged in the passage; the second is part of the ground on which that challenge is based.
BThe first states observations that, according to the passage, are incompatible with a certain hypothesis; the second is part of the grounds offered in support of a revision of that hypothesis.
CThe first states observations that, according to the passage , can be reconciled with a certain hypothesis; the second describes a phenomenon that is factual basis of that reconciliation.
DThe first presents a phenomenon, two competing explanations of which are considered in the passage; the second is the explanation of the phenomenon that the passage argues is correct.
EThe first provides evidence against a position; the second is that position.

C显示答案

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以上解析由考满分老师提供。

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