Which spectrum band of follows does NOT belong to optical spectrum band?
A: O-band
B: C-band
C: L-band
D: X-band
A: O-band
B: C-band
C: L-band
D: X-band
举一反三
- The energy level structure of semiconductor materials is not a discrete single-valued energy level, but a band structure with a certain width, called . A: Energy band B: Valence band C: Conduction band D: Forbidden band
- On May.25, 1992 the British music newspaper Melody Maker featured a band on the cover with the headline "The Best New Band in Britain" before the band released their first single. The band is _________.
- (4) A. bank B. band A: bank B: band
- On May.25, 1992 the British music newspaper Melody Maker featured a band on the cover with the headline "The Best New Band in Britain" before the band released their first single. The band is _________. A: . U2 B: . Coldplay C: . Suede D: . The Cranberries
- band