A. 120 to 80 torr B. 100 to 80 torr C. 120 to 60 torr D. 60 to 140 torr
A is the right option
Save my name, email, and website in this browser for the next time I comment.
Type above and press Enter to search. Press Esc to cancel.
Login below or Register Now.
Already registered? Login.
1 Comment
A is the right option