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12/27/2023
我的答案:ECBAA
正确答案:ECAAC
3. How do the placer and epigenetic theories differ in their predictions for new gold fields?
A) The placer theory suggests a wider distribution of gold.
B) The epigenetic theory recommends focusing on sediment beds.
If the placer theory holds true, new gold deposits should be discovered throughout similar sediment beds.
5. According to the epigenetic theory, what role did hydrothermalfluids play in the formation of gold deposits?
A) They carried gold to the region from distant sources.
C) They reacted with minerals to release and deposit gold.
原文误读所以出错: These fluids,bearing a cocktail of gold-sulphur complexes and other metals,traversed deep underground across a vast area. (误读了bearing,不是carry,且后面的这些东西也不是金属。这些流体含有金-硫复合物和其他金属,在地下深处穿越了广阔的区域。)
Upon contact with the riverbed sediments, the gold was precipitated out as a result of reactions with iron minerals, forming pyrite in the process.(对应选项的跟mineral反应)
观点争论文,没有侧重
P1世界上大多数的黄金矿在哪里,但关于黄金形成的学说有分歧
P2挖多深有黄金还不知道,为此采矿公司相信两种学说
P3两种学说的共同点,起源于30亿年前。岩层腐蚀
P4分歧在于黄金储存的结构,一派认为在哪,一派认为藏的更深
CR
我的答案:DB
前提:有景色的房子的房价涨了50%
前提2:总体房价同期涨了30%
结论:景色对房价上涨有重要贡献
Evaluate:是否没有景色的房子也涨了,但少于30%
前提:画作出现了常见于相机照片的分布
结论:画家使用了相机辅助作画
Support:画作的光效跟相机产生的一样并且人眼画不出来
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