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问题 单项选择题

正位胸片上，动脉导管未闭的特征表现为（）

A.双房影

B.漏斗征

C.靴形心

D.梨形心

E.平腰征

答案

参考答案：B

阅读理解
任务型阅读。
仔细阅读下列的一封信，然后填写信息卡。
February 15th
Dear Julie,
     Gong He Xin Xi (恭贺新禧)! I am on holiday in Beijing. I can see the Chinese New Year celebrations (庆祝) here.
     The Dragon Dance is the most exciting one. It is the first time that I see it and I am very happy. I also
eat traditional Chinese food. At night, there are fireworks in the street.
     What are you doing for Chinese New Year in Hong Kong?
                                                                                                                                       Lots of love,
                                                                                                                                       Wendy
信息卡
Where is Julie now?                      1                      
What can Wendy see?                      2                      
What does Wendy first see?                      3                      
What does Wendy eat?                      4                      
There are                 5                at night in the street.
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单项选择题

在应用脚手架扣件和钢管架设模板支承架时，钢管常用的规格为______。

A．φ48×53

B．φ51×53

C．φ60×3.5

D．φ75.5×3.75
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