You think so? - What's the problem? ALL Portuguese are European, NOT all Europeans are Portuguese, right?
Not all Portuguese are europeans.... there are still portugueses that were born in the African colonies. Just saying though, carry on.
- CNA is a private english school, as such they are not exactly cheap. So, save a really bad apple, nobody there should be in need of money. Provided this is discussed with the elderly, this shouldn't be an issue. Not a greater one than the elderly's grand children asking money to their grandparents behind their parents backs.
- It is stated that the conversations are recorded and evaluated by teachers. That would also work for avoiding most of the cases.
Any citation on this? From what I remember they were always flex, even if sometimes you might have to manually adjust something.
Since you quoted wikipedia, there it goes: ethanol fuel in Brazil. To get the info in a glimpse, check for the caption on the first image of the section (the FIAT 147 one), and read on for further info.
But I know where your misconception comes from: only recently pure ethanol has been used. It was used both as solute and as solvent to gasoline. As a solute, up to 25% volume, it was used to reduce gasoline dependency; and as a solvent to gasoline it was used to help deal with cold start problems of the ethanol prior to electronic injection, but cars were classified as ethanol fueled or gasoline fueled, nevertheless.
All it takes is the first commercial project producing bio-fuel to start making money, then development work will drop the price of biofuel even as the cost of extracting fossil fuel will continue to rise.
Did you know that since the 1970's around half the cars in Brazil are fueled by ethanol produced from sugar cane? You would think that a demonstration this wide was convincing enough, but here we are still gargling oil.
I spent some time testing various workloads on ScheisseFS, but in the end it was just a shitty solution.
What a crappy wordplay!
Given all of that, if advertisements are unavoidable I'd prefer random advertisements that are totally untargeted to who I am and what I do. I know, I know, that is "unprofitable" for the service providers and merchants.
You really woud rather have a penis enlargement ad, nsfw banner or pyramid scheme ad instead of whatever it is you get? You know that no matter how good the offer they're showing you are not required to click, or spend money, on it, don't you?
...and my first thought was: Wow! How many zeros in a brazillion?
Our population is about 200.000.000. Is this what a brazillion is? If so, eight zeros!