单选题 According to the passage, living science is impossible with, out widespread belief in the existence of

A、 nature and instinct.
B、 words and instinct.
C、 order of words.
D、 order of nature.

【正确答案】 D

【答案解析】演讲者提到 there can be no living science unless there is a widespread instinctive conviction in the existence of an Order Of Things，in particular，of an Order of Nature．所以[D]是正确答案。

A、 To believe in the instinct.
B、 To deny the instinct of science.
C、 To deny the rationality of science.
D、 To deny the rationality of the instinct.

【正确答案】 C

【答案解析】从 Hume 时代以来，否认科学的理性已经成了一种时髦。故选[C]。

A、 Science has become entirely arbitrary.
B、 It is impossible for scientists to find out the truth of nature.
C、 Scientific faith has removed the difficulty caused by Hume's philosophy.
D、 Scientific faith has become unreliable in research and study.

【正确答案】 C

【答案解析】根据演讲的最后一句话 But scientific faith has risen to the occasion，and has tacitly removed the philosophic mountain 判断，应选[C]。