问题
单项选择题
“二尖瓣”型心脏形态基本X线特征表现是（）
A.主动脉弓缩小
B.心尖上翘
C.左右心缘饱满
D.心脏呈“梨”形
E.肺动脉段凹陷
答案
参考答案：D
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“二尖瓣”型心脏形态基本X线特征表现是（）
A.主动脉弓缩小
B.心尖上翘
C.左右心缘饱满
D.心脏呈“梨”形
E.肺动脉段凹陷
参考答案：D
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| Wei Hua was quite busy yesterday. She got up 1 7: 00 in the morning. She washed her face 2 and had some milk and bread 3 breakfast. It was a fine day. She went to school early. She had four 4 in the morning. She had 5 rest after lunch, 6 she worked very hard in class all day. She played basketball after school and then went home. On her way home she 7 a pen. When she 8 home, she had a short rest. After that she helped her parents. She quickly cooked 9 and cleaned the house. She watched TV for half an hour after supper. Then she finished her homework at half past nine. She 10 at ten. | |||
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