肥厚型梗阻性心肌病在临床上的-个重要特点是（）
A.心悸、气短
B.胸闷
C.头晕
D.乏力
E.胸骨左缘收缩期杂音，含硝酸甘油后增强
参考答案：E
—What does your aunt look like?
— .[ ]
A. She's tall with curly hair
B. She's shy and quiet
C. She likes doing chores
D. She seems very busy
（）适宜于扑救汽油、煤油、苯、香蕉水、松香水等易燃液体的火灾。
A、水
B、二氧化碳灭火器
C、沙土
D、泡沫灭火器
