题目内容

蓄电池充电作业时，若采用常规充电，充电电流定为蓄电池容量的。

A. 1/4（A）
B. 1/5（A）
C. 1/10（A）

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蓄电池充电完成后，电解液密度为。

A. 1.15~1.20
B. 1.20~1.25
C. 1.25~1.28

第一套1. A.Henry Rosso failed to get an interview with Einstein when he first approached him.2. B. Einstein attributed his success in the discovery of the relativity theory to his slow development.3. C. With the help of his Princeton colleague, Einstein successfully dodged public exposure.4. D. It seems to be commonly believed that Einstein was not good at math.5. E. Einstein was quite unpopular among his teachers when he was a child.6. F. Einstein joined American citizenship by 1940.7. G. According to Einstein, new immigrants love America because of its democracy.8. H. Einstein’s belief lies in science rather than religion.9. I. Einstein has always retained a childlike curiosity towards the universe.10. J. Einstein’s theory of special relativity did not arouse immediate recognition until more than a decade later.第二套11.A. Henry Rosso lost his words when he met Einstein.12. B. It took 19 years for special relativity to be fully accepted by the public.13.C. Official greeting committee missed Einstein’s arrival in America.14. D. According to Einstein, his theory of relativity owed much to his slow development as a child.15. E. In order to seek after the truth, Einstein dared to challenge the authority.16. F. Einstein has thought about time and space since he was a child.17. G. Einstein used to be expelled from school by a German schoolmaster.18. H. Einstein was amazed by inertia and gravity.19. I. Einstein admired the democratic characteristic of the Americans.20. J. Einstein played violin for the carols on his first Christmas Day in

富文本框控件能输入、显示或处理具有格式的文本，它的以下哪个方法可以用来加载文件。（）

A. SaveFile()
B. LoadFile()
Copy()
D. Paste()

富文本框的以下哪个属性为真时，表示其中的文本发生了改变。（）

A. Text
B. SelectionStart
C. SelectionFont
D. Modified