--- What book are you reading? Wow, Harry Porter! May I have a look at it?

--- Yes, of course. You         have it as soon as I get through with it.

A．must

B．should

C．will

D．shall

肺动脉瓣狭窄的心脏杂音特点是（）

A.心脏听诊杂音向左腋下及左肩胛下角处传导

B.心脏听诊杂音向胸骨下端或心尖部传导

C.心脏听诊杂音向上传至右侧胸骨上窝及颈部

D.心脏听诊杂音局限于胸骨左缘第2肋间

E.心脏听诊杂音局限于胸骨左缘第3、4肋间