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After determining the levels of calcium carbonate and the types of fossilized algae present in core samples taken from the bottom of Lake Titicaca in the Andes, a group of scientists was able to reconstruct the history of precipitation in tropical South America over the past 25,000 years.
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
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原句句子结构：After determining the levels of ...and the types of ..., a group of scientists was able to reconstruct the history of...
原句逻辑语义：在确定从 Lake Titicaca in the Andes底部采集回来的样品中碳酸钙的水平和藻类化石的类型，一些科学家们能够重建沉淀在热带南美洲过去25000年的历史。
A.正确；determining的逻辑主语是scientists;
B.主句应该要立马给出主语，it was possible...没有立马给出；
C.无主句；
D.the levels of...and what types不平行；主句没有立马给出主语；
E.错误同D不平行；
286453gff
a group of scientists was????was????
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2021-04-15 02:11:42
324899shrb回复286453gff
是对的，很迷幻，a team of 是复数，a group of是单数
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2022-07-18 23:12:04
221503xmhh
the levels of AND 后面一定是the types of，排除D、E。接着读我倾向that从句，再接着读，after determing后面的主句一定要有主语，看逗号后面的第一个词，分别是a group of sci, it, that。秒排B、C。
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2021-02-10 19:19:29
杨淋清
为什么a group of scientists后面加的是was？
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2019-10-21 16:32:59
进步大于完美
a group of scientists后面＋单数吗？
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2018-05-15 18:00:27
默默
是人决定，所以高清非谓语的主语
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2018-04-09 08:01:55
拽mat
为什么A 的present 不需要是presented？
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2018-04-02 13:21:51
子璐回复拽mat
present做形容词，后置定语，意为现存的
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2018-07-16 21:17:19
CAT
笔记： and 前后结构的必须同为句子，同为名称 。必须对称
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2016-05-21 20:55:47
kisenana
determining 的主语应该是a group of scientists，排除BCD
选项A 正确
选项E （the levels of calcium carbonate） and （what the types of fossilized algae ）这里and前后不平行
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2015-12-07 14:57:51
科目：
句子改错SC
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Dinosaur tracks show them walking with their feet directly under their bodies, like mammals and birds, not extended out to the side in the manner of modern reptiles.
句子改错SC -18302
Upon their first encountering leaf-cutting ants in South America, the insects seemed to some Europeans to be carrying bits of greenery to shade themselves from the tropical sun—hence the sobriquet “parasol ants.”
句子改错SC -18297
With near to all tortilla chips made from corn kernels that have been heated in a solution of calcium hydroxide (lime), this removes the skin of the kernel so water can penetrate.
句子改错SC -18284
Many population studies have linked a high-salt diet to high rates of hypertension and shown that in societies where they consume little salt, their blood pressure typically does not rise with age.
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Although the company's executives have admitted that there had been accounting irregularities involving improper reporting of revenue, as well as of failure to record expenses, they could not yet say precisely how much money was involved.
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