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 |
相关试题
In the clinic the doctor gave me a （n） ___________ for anti-H1N1 flu．
| A．indication | B．prescription | C．direction | D．reservation |
The driver was at_________loss When ________word came that he was forbidden to drive for speeding．
| A．a；the | B．/；/． | C．the；the | D．a；/ |
How pleased the emperor was ___ what the cheats had said.
A．hearing |
B．heard | C．to hear | D．hear |
Although the wind has ____, the rain remains steady, so you still need a raincoat.
| A．die hard | B．die off | C．died down | D．die out |
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