Researchers have used to create high speed switches that the backward role of these waves.
A: silicon transistors（硅晶体管），speed（加速）
B: silicon transistors（硅晶体管）， halt（阻止）
C: cellular base（蜂窝基站），halt（阻止）
D: cellular base（蜂窝基站），speed（加速）
A: silicon transistors（硅晶体管），speed（加速）
B: silicon transistors（硅晶体管）， halt（阻止）
C: cellular base（蜂窝基站），halt（阻止）
D: cellular base（蜂窝基站），speed（加速）
举一反三
- Which process involves dipping a seed crystal into a molten silicon liquid and pulling it upwards at a specific rotational speed? A: Multicrystalline ingot casting B: Float-zone pulling C: Czochralski casting D: Silicon wire casting
- Which of the following is a possible cause of the event "the high speed train is underdeveloped in the US"? A: Americans don't like the high speed train. B: Highway network is advanced. C: The geography is unsuitable for the high speed train. D: The high speed train damages environment.
- Which process involves dipping a seed crystal into a molten silicon <br/>liquid and pulling it upwards at a specific rotational speed? A: Multicrystalline ingot casting B: Float-zone pulling C: Czochralski casting D: Silicon wire casting
- 中国大学MOOC: On August 1st, 2008, China’s first high speed railway, Beijing-Tianjin Intercity High Speed Railway was put into use, marking the beginning of the high speed era.
- High Speed Railway