19. 答案

　　B

　　解析

　　考查介词。此处介词with表示“为……工作；受雇于”。

　　20. 答案

　　B

　　解析

　　考查形容词。由上文关键词But以及下文中的overcrowding in hospitals in major cities，可知这种办法不足以减缓大城市中医院人满为患的状况。

　　Ⅱ.阅读理解

　　Chihlren with a stutter (结巴) do not suffer disadvantages at school, new Australian research suggests. More than ten per cent of children have a stutter by the age of four but they score just as high as other children on tests designed to assess their language, thinking skills and temperament.

　　Professor Reilly’s team studied over 1,600 children from Melbourne, Australia. Their mothers had been filling out regular questionnaires since their babies were eight months old and the children were assessed by a range of language and behaviour tests when they reached the age of four.

　　Reilly and her colleagues asked the parents to call the study group if their children started showing signs of stuttering. Diagnoses were confirmed by a speech pathologist, who then visited the homes of children with a stutter every month to check on their progress.

　　By the age of four, 181 of the children studied had been diagnosed with a stutter. Follow-up visits to the 181 children who were consistently assessed after diagnoses showed just nine no longer had a stutter one year later. Stuttering children scored 5.5 points higher than that of their non-stuttering peers on language tests and 2.6 points higher on the test of non-verbal intelligence.

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