Though left-handedness is inherited, and as much an integral part of its possessor as eye color or nose shape.这句话中,as much 是什么词性、什么意思?后面的as是作介词吗、是什么意思?
both...and...的否定式、not
either ...or ...、no …and no…的否定式的区别如:You can’t speak both German and
English.Both my father and my mother aren’t doctors. She isn ’t either a student or a teacher.