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问题 单项选择题

病例对照研究与队列研究相比，其优点是

A．更容易避免系统误差

B．更容易确定暴露与疾病的先后顺序

C．适用于对罕见病的研究

D．更容易验证病因假设

E．容易得到发病率指标

答案

参考答案：C

判断题

青春期出现矛盾心理是一种不正常现象，需要我们及时调节。  (    ）
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填空题
用方框中所给词语的适当形式填空，使文章通顺、完整。（每词限用一次）
turn, better, give, she, scared, visit, close, open, but, everyone
In a happy town there lived a little, beautiful and smart girl, and               小题1:name was Rose.                  小题2: in the town liked her. She was so brave（勇敢的）, but one thing she was scared of was the doctor.
One day her tooth was moving. Her mum saw it. She said, "Your tooth is moving, and you need to                小题3:Doctor Tim."
Rose said, "No! I am not going to the doctor. " Mum said, "Don' t worry. It' s not so wobbly（摆动的）now." That made Rose feel            小题4:.
After five weeks, Rose forgot about her tooth                小题5:her mum didn't. She checked her tooth again and it was wobbly, so she said, "It's time to see the doctor."
Rose was                 小题6:but she had to do what her mum told her, so they went to see Doctor Tim. They had to wait in the waiting room.
When it was her               小题7:, her heart was bumping（碰撞）very fast. She went into Doctor Tim' s room. He was smiling. She sat on the chair.
Doctor Tim said, "               小题8:your eyes. "
Rose closed her eyes, but just before Doctor Tim started, tears started coming down her eyes. But when she               小题9:her eyes, she saw Doctor Tim holding her tooth.
Rose smiled. Then Doctor Tim           小题10:her a teddy bear（泰迪熊）and from that time Rose wash' t scared of doctors any more.
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