. It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
| A．process | B．attention | C．measure | D．part |
相关试题
Companies are struggling to find the right ________ between supply and demand, but it is no easy task.
| A．balance | B．process | C．equality | D．pattern |
After staying in hospital for long, the patient was advised to go to the sea
side to____ his health.
| A．take up | B．hold up | C．make up | D．pick up |
______, I think, the problems can be settled in no time.
| A．A bit more efforts | B．Keep up your spirits |
| C．If you double your efforts | D．Making greater efforts |
Play, often seen as____activity for kids, is still important in_________development of teenagers.
| A．the; the | B． an; the |
C．an; 不填 | D．the; 不填 |
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