The young woman became critically ill and was sent to the big city,where specialists can be called ___to study the ____disease.
| A．up , general | B．in, rare | C．on , serious | D．for , important |
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The young woman became critically ill and was sent to the big city,where specialists can be called ___to study the ____disease.
| A．up , general | B．in, rare | C．on , serious | D．for , important |
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