The wavelength range of __________ will be fruitful for the operating wavelength of the system referring to the system performance.

1.1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2 ‚âà√≠¬¨‚à´m

0.8 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.9 ‚âà√≠¬¨‚à´m

5.2 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 5.7 ‚âà√≠¬¨‚à´m

3.1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 3.2 ‚âà√≠¬¨‚à´m

The wavelength range of __________ will be fruitful for the operating

1.	The wavelength range of __________ will be fruitful for the operating wavelength of the system referring to the system performance.
A.	0.8 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.9 ‚âà√≠¬¨‚à´m
B.	1.1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2 ‚âà√≠¬¨‚à´m
C.	5.2 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 5.7 ‚âà√≠¬¨‚à´m
D.	3.1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 3.2 ‚âà√≠¬¨‚à´m
Answer» B. 1.1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2 ‚âà√≠¬¨‚à´m