As _______ general rule, the working temperature of the installation (设备) is _______ more important consideration than the working pressures.
| A．a; / | B．the; / | C．the; a | D．a; a |
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As _______ general rule, the working temperature of the installation (设备) is _______ more important consideration than the working pressures.
| A．a; / | B．the; / | C．the; a | D．a; a |
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