孔雀木是一种名贵的观赏植物.要培育大量无病毒侵害的孔雀木植株,最好选用的生物技术是( )
A:嫁接
B:扦插
C:异花传粉
D:植物组织培养
It is of you to help so many people and it is important us to be kind to others.