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  3. Most doctors in a recent survey said that annual physical examinations were effective with detecting illness 【M1

Most doctors in a recent survey said that annual physical examinations were effective with detecting illness 【M1

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问题     Most doctors in a recent survey said that
annual physical examinations were effective with detecting illness                【M1】______
in apparently healthy patients, even there is little scientific evidence         【M2】______
to support the exams. The report found that physicians are largely unaware that   【M3】______
current federal government guidelines did not recommend annual exams for healthy adults
with symptoms. The study also suggested that in
performing annual physicals many physicians                                       【M4】______
routinely order screening tests that had not been
proved useful for patients with no symptoms.                                      【M5】______
Sixty-five percent of 783 physicians who completed a questionnaire maintained that【M6】______
an annual physical was necessary, and 55 percent believed that annual physicals for healthy
adults were recommended by national organizations. The researchers found that even
many a doctors who were aware of published
guidelines continued to perform annual physicals,                                 【M7】______
because patients wanted them, or because
they believed the procedure gave them the chance                                  【M8】______
to offer advice about preventive health measures.
Among the physicians, those are younger,                                          【M9】______
the women, the gynecologists and those in private practice
were the most inclined ones to favor                                              【M10】______
annual exams.
【M9】
选项
答案those^are改成who
解析 句式结构及定语从句。考虑上下文可以看出这里是要求并列的主语，而those应该是主语中的一个，如果不是则构成“run-on sentence”，因此将“those are younger”分句变成名词的唯一方法是在those后面加 who变成定语从句。
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