今夜闹市区交通繁忙。There is heavy traffic in the downtown area tonight.他从小在巴拿马城中心闹市区的穷街陋巷里长大。He was raised on the mean streets of the central market district of Panama City.汽车向第九路飞驰,然后又转向闹市区.The car sped up to Ninth Avenue and tu...
接合形成的合子是部分二倍体,也叫做部分合子.The zygotes formed in conjugation are partial diploids or merozygotes.它是单细胞真菌,有单倍体和二倍体两种存在形态.The fungus is unicellular and exists in both haploid and diploid phases.同源多倍体与其亲本二倍体在遗传上相隔离.Autopolyploid...