问题
单项选择题
下列有关心功能临床评估哪一项是不正确（）
A.心功能Ⅰ级，屏气试验>30秒，认为心功能正常
B.心功能Ⅱ级，屏气试验20～30秒，认为心功能较差
C.心功能Ⅲ级，屏气试验10～20秒，心功能不全
D.心功能Ⅳ级，屏气试验<10秒，心功能衰竭
E.心功能Ⅴ级，屏气试验<5秒，濒临死亡
答案
参考答案：E
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下列有关心功能临床评估哪一项是不正确（）
A.心功能Ⅰ级，屏气试验>30秒，认为心功能正常
B.心功能Ⅱ级，屏气试验20～30秒，认为心功能较差
C.心功能Ⅲ级，屏气试验10～20秒，心功能不全
D.心功能Ⅳ级，屏气试验<10秒，心功能衰竭
E.心功能Ⅴ级，屏气试验<5秒，濒临死亡
参考答案：E
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