Pressure of CO‚Äö√á√á gas (which is a coolant) in the Calder-Hall nuclear reactor is __________ kgf/cm¬¨‚â§ .%!

Pressure of CO‚Äö√á√á gas (which is a coolant) in the Calder

1.	Pressure of CO‚Äö√á√á gas (which is a coolant) in the Calder-Hall nuclear reactor is __________ kgf/cm¬¨‚â§ .%!
A.	0.2
B.	7
C.	35
D.	50
Answer» B. 7