题目内容
（请给出正确答案）
[主观题]
A number of doctors in this country （was) asked to from a new organization （taking) respon
A number of doctors in this country (was) asked to from a new organization (taking) responsibility for (overseeing) the training of (specialists) in the new field.
A．was
B．taking
C．overseeing
D．specialists
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