皮皮学，免费搜题
登录
搜题
【单选题】
胸部X线检查心电图心影呈梨形提示A.
主动脉瓣狭窄
B.
三尖瓣关闭不全
C.
二尖瓣关闭不全
D.
二尖瓣狭窄
E.
心包积液
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】A surprising amount can be learned in a short time by those who have clear objectives and are prepared to work consistently, providing that they clear their mind of some prevalent misconceptions.
【判断题】In US and UK, students beginning in a school are grouped into classes and they remain in those classes for the entire time in that school.
A.
正确
B.
错误
【单选题】In a few time, those mountains will be covered with trees.
A.
year
B.
years'
C.
year's
D.
years
相关题目：