A选项：比较对象❌：what demographers need to know 和now对比；
B选项：conditional verb is needed; 'economical'....经济的，偷换key word了；
C选项：'economical'....经济的，偷换key word了；
E选项：比较对象不对等

划线句前面是专有名词的题目，我首选that引导的同位语从句；
A选项：published her Discourse和arguing in a treatise重复，wordy;
B选项：同A
C选项：and连接前后两个句子片段，advocate sth没问题；但是advocate for...❌的搭配；
D选项：同C

A选项：which brightened the Northern Lights and also possibly knocking不平行
B选项：’X was what recently triggered Y‘ is wordy and awkward;and it brightened the Northern Lights and also possibly knocked两个and是句子redundant;
D选项：ejected from the Sun信息丢失； it多余，因为brighten 和 knock的主语是相同的，同时由and连接两词也需要平行；
E选项：brighten和knock out都应是trigger的伴随状语，两者应该保持语法上的平行。

A选项： knowledge of the literatures of Europe, China, and Japan并列，谓语动词为单数；
B选项： knowledge of the literatures of Europe, China, and Japan并列，谓语动词为单数；both...as well as❌
D选项：as much as 表示程度，不能用来修饰两个没有关系的事物；
E选项：were不符合主谓一致；both and

手抖 按错选项..........

RON:you can't use 'resulting from' as an adverbial modifier, as is done here. in general, 'resulting from' is only used as an adjective modifier, almost always without a comma, as in the pollution resulting from the chemical spill forced all the local residents to evacuate
无personalized 无process-orient 用名词形式removal

ONLY IF 错选A ,,,,, 不用虚拟 这里就是正常情况

A选项：比较对象不一致；
B选项：’were of the conviction of genes being‘ is wordy and awkward;
C选项：‘Contrary to many of her colleagues being convinced’ is wordy and awkward;
E选项： is wordy and awkward;

use 这个词 主语

错选D if 位置错了

补不补出was有什么区别吗

除了从逻辑上推 还要看看细节部分的错误‘

我以为是 先活下去 再占 应该是 占据了 才活了下来........ 先后顺序弄错了 错选E

自己 莫名其妙选了higher 比较的对象都没有............

A as 可以作为连词 表示 因为 随着

A选项：'general market inactivity' can be directly compared with 'paralysis'. Such contrasts are best made using phrases that are adjacent (here, the adverb' lately'); if a more normal clause structure is used, 'making things even more difficult' becomes a modifier, not the main predicate, so it should b clearly set off from the rest of the clause with a comma.
B选项：Making things even more difficult后面没有逗号，就是会awkward.

A选项：Making things even more difficult has been general market inactivity lately,倒装general market inactivity lately has been making things even more difficult.现在完成进行时：目前的市场的不活跃过去一直是事情更困难－语义上有问题；这个选项要么改为：
General market inactivity has been what makes things even more difficult.要么改为：General market inactivity makes things even more difficult.

连翻译文段都看不懂。。。

这个lifted用得实在是太illegal了

6个人6个不同身高分别设为1,2,3,4,5,6。两排均需要满足从左到右递增，且第二排的必须比第一排高，可见第一排最左边必须是1，第二排最右边必须是6，否则无法满足题干条件。
接下来讨论其余四个数的排列：
当第一排第二个数是2时，第一排第三个数在其余三个数中选择一个即可，选完后剩下的两个数按照大小顺序排在第二排剩余位置时只有一种情况。因此第一排第二个数是2时有3中排法。
同理，当第一排第二个数是3时，第一排最后一个数只能在4、5中二选一，选完后剩下的一个和2按照大小排在第二排。第一排第二个数是3时有两种排法。
而当第一排第二个数是4时，第一排第三个数和第二排第二个数都需要比4大，此时只有5比4大，排法不成立。同理，第一排第二个数也不可能是5。
综上所述，总计有3+2=5种排法，分别是：
4,5,6 3,5,6 3,4,6 2,5,6 2,4,6
1,2,3 1,2,4 1,2,5 1,3,4 1,3,5