这个BOLDFACE题目究竟是什么啊？

好像是问boldface的句子在整段话中的作用，属于考察结构的题目。

OG11里面好像没有遇到过。

BF - 1、BoldFace题的简称，又叫黑脸题。是CR题型出题方式中的一种，一般是题目叙述中有1~2句的黑体字，问这1~2句话在整段叙述中所起的作用，此类题目一般较难，有遇见BF题即为高分的说法，但不完全准确。
2、Boy Friend...^_^

参见置顶帖。

来一道给你做做。

Historian: Newton developed mathematical concepts and techniques that are fundamental to modern calculus. Leibniz developed closely analogous concepts and techniques. It has traditionally been thought that these discoveries were independent. Researchers have, however, recently discovered notes of Leibniz’ that discuss one of Newton’s books on mathematics. Several scholars have argued that since the book includes a presentation of Newton’s calculus concepts and techniques, and since the notes were written before Leibniz’ own development of calculus concepts and techniques, it is virtually certain that the traditional view is false. A more cautious conclusion than this is called for, however. Leibniz’ notes are limited to early sections of Newton’s book, sections that precede the ones in which Newton’s calculus concepts and techniques are presented.

In the historian’s reasoning, the two boldfaced portions play which of the following roles?

A、The first provides evidence in support of the overall position that the historian defends; the second is evidence that has been used to support an opposing position.

B、The first provides evidence in support of the overall position that the historian defends; the second is that position.

C、The first provides evidence in support of an intermediate conclusion that is drawn to provide support for the overall position that the historian defends; the second provides evidence against that intermediate conclusion.

D、The first is evidence that has been used to support a conclusion that the historian criticizes; the second is evidence offered in support of the historian’s own position.

E、The first is evidence that has been used to support a conclusion that the historian criticizes; the second is further information that substantiates that evidence.