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RC Answers: BCCDB
CR Answers: CC
Discovery of multiple galaxies and Universe expansion
- 1920 relevation: our galaxy is one among all
- uniform recession: distant galaxies are receding, indicating expansion
- Spacetime: recognized as stretching (increase in size) not static (constant in size/infinite)
Galactic movement and its applications
- Distinct motions
- Mass density fluctuation
- could determine future of universe
Contribution of Hubble
- Spectral Line effect
- redshift observation
- shift from static universe theory to expanding universe
Acceptance and applications of expanding universe
- 1930: Hubble Law established - proportional velocity to distance
- 1970: Big Bang theory embraced
CR 1 已知:古罗马的leaves有功效;一名研究人员,品尝希腊的leaves没有功效;得出结论,历史记录不准确。
从样本偏差的角度分析,存在很多未知gap:
1)测试人员的差异 (individual VS researcher);
2)植物本身存在的差异(different species under the bay laurel family);
3) 测试量的差异(say consume 10 leaves vs consume 2 leaves) ;
4)古罗马 VS 希腊,时间、环境上的差异 (time, temperature, environment);
A 指出因其他因素影响,功效被抵消 - 即使被抵消,不代表完全没有功效;削弱程度低
B 指出测试人员的差异 - 样本偏差,存在特殊性;削弱程度强,感觉也符合推理逻辑
C 指出植物本身存在的差异 - 输入样本不同,不可比,同时提到了时间上的差异,削弱程度最强
D 加强
E 指出测试量的差异 - 削弱程度低
CR 2 Assuption: it was indeed a mistake 4x; it was not caused by something else
A. NT
B. weaken. If it is caused by typo, rather than shakespeare, it is not considered mistake.
C. Yes; if the word was used correctly on other pages, that would imply he knows the differences and got them correct for most time, but incorrectly spell them 4x.
D. weaken. Intentionally means it was not a mistake.
E. weaken. then its not a spelling mistake for "food" |
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