种间杂交的主要障碍是F1代的不育性.A major barrier to interspecific hybridization is sterility in the F 1 progeny.因此,向日葵细胞质雄性不育性的研究备受关注.That is why cytoplasmic male sterility ( CMS ) in sunflower is the research focus through years....
Shirley's brother is now a consultant heart surgeon in Sweden.雪利的兄弟现在在瑞典做心脏外科高级顾问医师。He set up shop as an independent PR consultant.他自己开公司，做起了独立公共关系顾问。He was consultant rheumatologist at the Royal Hampshire Hospital....
You can use it to auto - split output file into several files to fit CD - R , DVD - ROM.你可以使用它来自动分割输出文件分成几个文件,以适应的CD -R, DVD -ROM 光碟.This DVD player reproduces the sound of the piano very well.这部DVD播放机能够很好地再现钢琴的声音.So you...
Now draw or trace ten dinosaurs in ascending order of size.现在按照体型由小到大的顺序画出或是临摹出10只恐龙。We watched the mists ascending from the valley.我们看着迷雾由山谷升起.Before ascending to the bench, she was a lawyer in a large New York firm.在升为...
他面无表情地站在那里，听法官宣布判决。He stood emotionless as he heard the judge pass sentence.据我所知，他在报道中毫不留情地批评了初审法官。I gather his report is highly critical of the trial judge.这一案件被发回法官处重新审理。The matter was remitted to the justices for a re...