主动脉狭窄听诊最响的部位()
A.左锁骨中线内侧第5肋间
B.胸骨左缘第2肋间
C.胸骨右缘第2肋间
D.在胸骨体下端近剑突稍偏右或稍偏左处
E.胸骨右缘第3、4肋间
参考答案:C
非水滴定法测定弱酸的含量()
A.邻苯氮菲指示液
B.淀粉指示液
C.偶氮紫指示液
D.溴麝香草酚蓝指示液
E.结晶紫指示液
将下列对话按正确的顺序排列。
a: It's Around China.
b: What do you usually do on weekends?
c. How often do you watch this program?
d: What's your favorite program?
e: I usually watch TV.
f: Every Friday evening. I love that program.
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