听诊时既有S1亢进，也有P2亢进的是
A．二尖瓣狭窄B．二尖瓣关闭不全C．主动脉瓣狭窄D．主动脉瓣关闭不全
参考答案：A
Reporters are _______ to get all facts straight and present their stories fairly.
A．believed
B．supposed
C．thought
D．considered
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