The study also indicated that homozygosity by selfing could significantly enhance the mean resistance level of O. rufipogon and O. officinalis.

研究还表明，自交提纯能够明显提高这两种野生稻的平均抗性水平。

youdao

The I/O module was also designed to provide high-level instruction set, which greatly simplified the I/O operation of RF IC cards.

模块设计有用户高级读写指令，极大地简化了应用系统对射频卡的操作；

youdao

For the first time the W.H.O.raised its alert level from phase four to phase five on April twenty-ninth.

VOA: special.2009.05.06

Monday's briefing will also confirm that Mr Gove has dropped plans for a two-tier exam system - with more academically-able students taking an O-level type exam and the rest taking an easier test.

BBC: GCSE exam changes to be announced by Michael Gove

They recently wrote to Education Secretary Michael Gove to complain they were not consulted over leaked plans to make further changes to GCSEs for England - billed as a return to O-level-style exams.

BBC: More pupils taking international GCSEs

The Education Minister for Wales, Leighton Andrews, has said Wales will not return to O-level-style exams.

BBC: Plans for O-level-style exams to replace GCSEs