正确答案: C

梁启超

题目：《论毅力》的作者是（ ）

解析：C

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学习资料的答案和解析：

[单选题]A good way to train an animal to do something quickly is to_____.

reward it with food

[单选题]In 1986 the government announced it would __________the production of nuclear weapons because of internal and external political pressure.

abandon

解析：boost鼓舞；begin开始；resume继续：abandon放弃。题干意思：政府迫于国内外的政治压力将于1986年放弃核武器的生产。

[单选题]It is clear from the passage that Chevies refer to ______.

Chevrolets

解析：

本题为细节题。根据文章第1段最后一句He said it was a 1950 or 1951 Chevro

let．和第2段第1句中的Ordinarily，searching through the files for owners of elderly Chevies would have been an impossibly difficult task because there were two and a half million such cars．我们不难看出Chevrolets与Chevies所指的是同一个东西，故应选D。

[单选题]慢性腹痛，每于冬秋季发作，进食后缓解，应考虑 （ ）

消化性溃疡

[单选题]视网膜 （ ）

外层为色素上皮层

[单选题]教育学作为一门独立形态的科学形成于( )

资本主义社会