老师你好，左边这道题解法听明白了，但是3k加2乘以15k加3这个方程不会解，最近看好多题都是不知道怎么解方程，我全忘了。数学书我看了，有概念，但是没教怎么解方程的！请先告诉我这道题那个地方是怎么回事，再教我怎么做，谢谢！

Scientists have observed large concentrations of heavy-metal deposits in the upper twenty centimeters of （Baltic Sea sediments, which are consistent with the growth of industrial activity there）. (A) Baltic Sea sediments, which are consistent with the growth of industrial activity there (B) Baltic Sea sediments, where the growth of industrial activity is consistent with these findings (C) Baltic Sea sediments, findings consistent with its growth of industrial activity (D) sediments from the Baltic Sea, findings consistent with the growth of industrial activity in the area (E) sediments from the Baltic Sea, consistent with the growth of industrial activity there 这题答案是D，但是觉得D的表达很不高效，当时就排除了。Review也没太看明白，请老师讲解一下

In recent years cattle breeders have increasingly used crossbreeding, (in part that their steers should acquire certain characteristics) and partly because crossbreeding is said to provide hybrid vigor. (A) in part that their steers should acquire certain characteristics (B) in part for the acquisition of certain characteristics in their steers (C) partly because of their steers acquiring certain characteristics (D) partly because certain characteristics should be acquired by their steers (E) partly to acquire certain characteristics in their steers 看到划线后的and就想到平行，然后就错选了D，答案是E，不理解为什么，请老师讲解一下。谢谢！

In a state of pure commercial competition, there would be a large number of producing firms, all unfettered by governmental regulations, all seeking to meet consumer needs and wants more successfully than each other. A.all seeking to meet consumer needs and wants more successfully than each other B.all seeking more successfully to meet consumer needs and wants than the others C.each seeking to meet consumer needs and wants more successfully than one another D.each seeking to meet consumer needs and wants more successfully than the others E.each seeking more successfully to meet consumer needs and wants than another C和D到底怎么判断啊？

语法比较

个人计划

想問下7月23要考試，已經上過面授，現在應該怎麼復習呢？

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[The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.] A The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate. B The ability of scientists has become ever more accurate in providing models of the atmosphere's complex responses to changing conditions, such as seasonal and daily cycles or different planetary conjunctions. C Scientists have become able to provide ever more accurate models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions. D Scientists have become ever more accurate in their ability for providing models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions. E Scientists' ability to provide models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions have become ever more accurate.

问题： 1. 听了老师的中文作文思路，但不知道该怎么转化成英文 2. 每个点要先概括说一下是什么问题吗？ 3. 作文主体部分要分段吗？ 如果点比较多怎么分？