5.They were leaving the school___it began to rtin yesterday 按要求改写句子 1.The film is very wonderful(改感叹句) ___ ___the film is! 2."Don't watch TV any more."my mother said to me.(改同义句) My mother told me___ ___ ___TV any more. 3.There are some books in the...
1. A car accident happens easily on the ___(ice) road.2. The news ___(rt) told us he would come to our school the next week.3. What ___(pen) while we were having an English class yesterday?4. When the meeting started, Mr. Smith was still making ___(he) way to school....
These ideas are the frozen accident perspective on the code evolution and the inference of a RNA-only translation system. The genetic code that defines the rules of translation from the 4-letter nucleic acid alphabet to the 20-letter alphabet of proteins is arguably the single central ...