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问题 单项选择题

3岁小儿患先天性心脏病，X线检查示右房室增大，左心室及主动脉缩小，肺多血。提示为（）

A.房间隔缺损

B.室间隔缺损

C.肺动脉狭窄

D.动脉导管末闲

E.法洛四联症

答案

参考答案：A

单项选择题

The achievements of the greatest minds in science could never have been reached if it had not been for the patient and accurate work of hundreds of other people.

A．has it not been

B．if it had been

C．if hasn't been

D．had it not been
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单项选择题 A1型题

卵巢动脉来自（）。

A.腹主动脉

B.髂总动脉

C.髂内动脉

D.髂外动脉

E.肾动脉
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