问题
单项选择题
直接引起心脏后负荷加重的瓣膜病为
A.主动脉瓣狭窄
B.主动脉瓣关闭不全
C.二尖瓣狭窄
D.二尖瓣关闭不全
答案
参考答案:A
直接引起心脏后负荷加重的瓣膜病为
A.主动脉瓣狭窄
B.主动脉瓣关闭不全
C.二尖瓣狭窄
D.二尖瓣关闭不全
参考答案:A
补全对话。从方框中选择最佳选项补全对话,其中有两项多余。 | |
B: It was great. I enjoyed it. A: 2 ? B: My family went to the Great Wall. We visited my uncle in Beijing. A: 3 ? B: No, I stayed at home and studied for the math exam, 4 . Did you go? A: Yes, I did. I saw the Rush Hour last night. B: 5 ? A: It was really exciting. 1._____ 2. _____ 3. _____ 4. _____ 5. _____ |