A. State Hermitage Museum
B. Louvre Museum
C. Metropolitan Museum of Art
D. National Museum of China
A. Taceometer
B. Chronometer
C. Retinoscope
D. Spectrometer
A. Photodiode
B. Electroscope
C. Polaroid
D. Retinoscope
A. Ophthalmoscope
B. Richter Scale
C. Virtual and Erect
D. Telescope
A. Photodiode
B. Centrifuge
C. Retinoscope
D. Light year
A. Photodiode
B. Taceometer
C. Transformer
D. Polaroid
A. Ophthalmoscope
B. Spectrometer
C. Seismograph
D. Sonar
A. Transformer
B. Coronagraph
C. Altimeter
D. Photodiode