Medicago truncatula, barrel medic, is a forage crop that has been developed into a model legume. The development of new transformation methods is important... C Crane,E Wright,RA Dixon,... - 《Planta》 被引量: 182发表: 2006年 Genetic diversity and spoilage potentials among Pseudomonas spp....
sexual intercourse is not worth all the work and effort the husbands must expend to arouse their wives. So perhaps the danger to boys is that through heavy petting, they are turning a girl into a frigid lover for her husband. A boy might not worry about that...