A-A+
??Market research agencies which frequently or
问题详情
??Market research agencies which frequently organize training,where trainees learn how ??
44__________
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参考答案
正确答案:
WHICH【考点点睛】引导词错误。此句中含有非限制定语从句,引导词为where,故which为冗余成分,主句中不应含有which。此句意为“市场调查机构经常组织培训。”