D选项不应该是今年的山核桃收成不比去年低吗？？

choice e is incorrect because of its inappropriate use of the past perfect. if you're going to say kids' programming had once been limited to ..., then you must reference a second past event. this sentence doesn't do that: the second event referenced is in the present (specifically, 'now').

A E 是run-on，直接干掉，scale后面of做定语修饰说明scale，而更合理的语义是用with介词短语修饰前面的built动作，另外each如果指代前面rooms做同位语则似乎在说每个房间都有一个复杂的链接系统链接，而更合理的语义是strutures整体被一个复杂的系统链接。

"the joint adoption..." doesn't sufficiently indicate who is going to adopt the new regulations.
in general, ACTION NOUNS (adoption, destruction, etc.) don't imply that the subject of the sentence is performing the action; they usually refer to the general notion of that action.
by contrast, -ING forms do usually imply that the subject of the sentence is the actor.

qualify：4、V-T If you qualify a statement, you make it less strong or less general by adding a detail or explanation to it. (通过增加细节、解释) 使语气缓和; 使…不太笼统

个人认为C应该是strongly的问题。如果Y国只有一点点赞成的话也会实施方案的。

50%X是不含税的amount，为什么可以直接乘以4%？不应该是50%X/0.96*0.04才是实际付的税吗？

前提：米国太阳能发电机产量占世界产量过半，这些产品大多远消欧洲
结论：以后欧洲自产自销了，如果米国也刺激国内内需成功的话，未来米国的产品还能保持相同产量！
问题：原因是啥？
分析：为什么说以后欧洲自产自销了，如果米国也成功刺激国内内需，未来米国的产品还能保持相同产量呢？必须是以前卖给欧洲的产品在刺激米国内需后，米国人会买米国的产品，米国人为啥会买自己的产品呢？因为和欧洲一样，都有优势！题目有个逻辑gap|需求有了，就一定会买自国产品吗？c解释了。e说米国现在市场空缺大，等等，这还是有需求，不代表能自产自消！

想知道为什么a错了

competing到底是啥意思？是有竞争力的？还是相互竞争的？

这道题真的是显而易见到我不敢选。。。。

这道题我见过不下4遍 ￣□￣｜｜

Let x be the # of $0.15 stamps and y the # of $0.29 stamps. Note that x and y must be an integers. Q: x=?

(1) She bought $4.40 worth of stamps --> 15x+29y=440. Only one integer combination of x and y is possible to satisfy 15x+29y=440: x=10 and y=10. Sufficient.

(2) She bought an equal number of $0.15 stamps and $0.29 stamps --> x=y. Not sufficient.

Answer: A.

感觉二楼解释的很好。我一直在纠结去年的新公司变成了今年的老公司，但是其实题意已经涵盖这一点了。

逻辑链是：多年前p疫苗被病毒感染→m中病毒来源，前边说的病毒是m病的contributing factor是前提而不是讨论的重点。我错在找错了逻辑链。更正逻辑链再看：C：和逻辑链无关，无法证明到底是不是来源；E：无A无B，加强

D选项的意思是，tax,即revenue增加是因为饭店自己想到了对策，而不是因为吸烟的禁令本身不会影响到sales。

看到一个解释：better control of other infections such as---后面举例的就应该是control的手段 如果是better control of such infections as--后面举例的就应该是infection，非划线部分的两个例子是感染，所以A的结构是肯定不对的

没有

答案错了吧，1）alone不是有三个解吗？

注意这种not only 提前之后的结构该如何平行