十二月的销量是一到十一月销量的平均值

1毫米=0.1厘米，1立方毫米=0.001立方厘米。cubic是立方的意思。

ron: many of which 和 many of whom 都是错的，因为many of which works like which, 必须紧跟一个noun.

似乎也没表达明白

if从句的时态要将所表述的与之相反的时态前推一个时态，主句的时态就是所表述的与之相反的时态

if do, then will do /can do
if did, then would do/could do
if had done, then would have done/could have done

E the earlier part doesn't mention "the energy from nuclear power in france", so this isn't parallel. (the earlier part mentions a percentage of ALL power in france.)

相关因果：用户最终能否收到节目除了和是否安装接收器有关，还与是否处于接受范围内有关。属于他因

A&E "it" would have to stand for something like "the percentage/proportion/fraction of energy provided by nukes". there is no such noun in the sentence, so "it" is an orphan.

this is illogical in the case of "growing up to 30 feet long", because the suggestion is that the 32 species of the dolphin family grow up to this long as a consequence of being closely related to whales, etc..

the "and" at the end of (b) introduces false parallelism, "being" in (c) is problematic, and "it" in (e) violates parallelism.

you don't say both "as big as..." and "long" in the same sentence. you can use only one of these words, both of which express the same idea (i.e., length or size).

it's impossible for one company to be two companies; the sentence must say that one company is going to be broken into two companies (or that two companies are going to be created from one company, etc.)
it可以指Nippon Telephone and Telegraph Company

抱歉，答案看差了。。。

这题目？设成年票为x张，儿童票为y张，一共收入10500=25x+15y x+y=500，这不就求出来了？为什么不能呢。。

A 选项中不知道是我自己理解的问题还是老师讲错了。
“由于这个定语从句中的谓语动词是复数” 这句话是假设谓语动词“create“是正确的用法，所以我们推导出定语从句修饰的主语是复数。如果逻辑如此那显然是错的，我们不可以假设选项中的谓语动词单复数形式一定正确。
gmatclub上的解释是，因为"in an individual"这个短语的性质是介词，所以后面修饰名词的定语从句可以跳过它直接修饰"emotional reactions".

a the ablity to deal
c the capability of respiratory system

tenth of (x+y)>=2.

35 people make a list. the median is the 18th people. from the least to the greatest, 9(pax)+4pax+1pax+2pax+1pax=17pax, then the 18th people begin from the members who use 6 hrs. therefore the median is 6hrs.

draw the picuture is best way to solve it. both + only mump =5000+2500, therefore, againist rubbla is (R+5000)=2.(5000+2500), so R=10000