2. 外语
  3. The author is primarily concerned with______ It can be inferred from the passage that the efficiency of model-based gold explor

The author is primarily concerned with______ It can be inferred from the passage that the efficiency of model-based gold explor

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问题 The author is primarily concerned with______
It can be inferred from the passage that the efficiency of model-based gold exploration depends on which of the following?
I. The closeness of the match between the geological features identified by the model as critical and the actual geological features of a given area
II. The degree to which the model chosen relies on empirical observation of known mineral deposits rather than on theories of ore-forming processes
III. The degree to which the model chosen is based on an accurate description of the events leading to mineralization
选项 A、I only
B、II only
C、I and II only
D、I and III only
E、I, II and III
答案D
解析 The best answer is D. According to the passage, after constructing conceptual models based on observations of known mineral deposits and theories of ore-forming processes, “The explore uses the models to identify those geological features that are critical to the formation of the mineralization being modeled, and then tries to select areas for exploration that exhibit as many of the critical features as possible’ (lines 35-39). It can be inferred from this that the efficiency of the resulting exploration will depend on how closely the features of the selected area match the features identified by the model as critical (Statement I) and on how accurately the process of mineralization has been modeled (Statement III). According to the passage, both empirical observations of known mineral deposits and theories of ore-forming processes are important in constructing the models, so Statement II cannot be part of the correct answer.
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