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问题 单项选择题

该例产后出血最可能的原因是

A．软产道损伤
B．胎盘残留
C．宫缩乏力
D．胎膜残留
E．急产

答案

参考答案：C

选择题

“十月怀胎，一朝分娩”，280天左右，一个新生命诞生了，在从受精卵到新生命呱呱坠地前的整个过程中，胚胎生长发育所需要的各种营养物质从下列的哪项中获得

①子宫 ②脐带 ③卵黄 ④胎盘[ ]

A．①②

B．②③

C．③④

D．②④
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填空题

Questions 9-13


·You will hear one passage about science and daily life. Before you listen, read the list of statements, five of which are summaries of how science has changed man’s life. Then listen carefidly and match the statements (A-F) in the correct order (9-13). There is one extra statement that you don’t need to use. You will hear the passage twice.
  • A. Scientific discoveries are companied by the problem of air
    pollution.
  • B. Scientific discoveries have changed man’s moral atmosphere
    and caused ethical issues.
  • C. Scientific discoveries make people use available resources
    more efficiently.
  • D. Medical improvement has made people have a longer life
    span.
  • E. People can communicate with each other more easily.
  • F. Distance between two places is shorted with the advancement
    of transportation.
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