讠:____ ____ 彳:____ ____
亻:____ ____ 氵:____ ____
艹:____ ____ 禾:____ ____
某蛋白质分子由l00个氨基酸组成,含2条肽链,则在氨基酸脱水缩合形成该蛋白质的过程中产生的水分子个数为( )
Fitness is important in sports but of at least _____ importance are skills.
△ABC中,AB=AC,∠A=36°,BD平分∠ABC,则∠1 =____度,此三角形有____个等腰三角形