用反证法证明命题“三角形中最多有一个是直角”时，可以假设为____ 

     Imagine you are living in a moving house. Inside the house, there is a small kitchen, bathroom and bedroom.Everything you need is close at hand.

     In the US, you can really see these moving houses on the mad. They are called recreational vchicles(RV,房车).People call them houses on wheels. When it's holiday time, the whole family often gets into this lovely house and hits the road for a trip across the country.

     Compared to a real house, this home on the road is small for a family who has to spend every hour of every day together. But the best thing about it is that it changes your journey into a free exploration.

     You can drive as long as you like without worrying about finding hotels. Or you can just stop somewhere nice and stay for a few weeks. You may also come across other families who are on road trips. Together, you take out your tents and snacks. It's camping time with a lot of chat and laughter.

     Of course, RVs are not always convenient(便利).They can sometimes break down and you have to spend time mending them. But this type of road trip still wins people's hearts because they can go whenever and wherever they want.

下列有关ATP的叙述，正确的是（　　）

仿照画线句子，按照不靠窗的病人当时的思维逻辑，在下面再补写一句话。

一天下午，当听到一名板球队员正慢悠悠地把球击得四处皆是时，不靠窗口的病人，突然产生了一个想法：为什么偏偏是挨着窗户的那个人，能有幸观赏到窗外的一切？为什么自己不应该得到这种机会呢？

0.1mol某烃在足量的氧气中完全燃烧，生成的CO₂和水各0.6mol，则该烃的分子式为　 ____．

若该烃不能使溴水或高锰酸钾溶液褪色，但在一定条件下，可以和液溴发生取代反应，其一溴取代物只有一种，则此烃属于 ____烃，结构简式为 ____　，名称是 ____．

若该烃能使溴水褪色，且能在催化剂作用下与H₂发生加成反应，生成2.2﹣二甲基丁烷，则此烃属于 ____烃，结构简式为 ____，名称是　 ____．