胆囊内见一附壁高回声团，直径约4mm，后无声影，不移动，最恰当的超声诊断是（）
A.息肉样病变
B.胆泥球
C.钙化
D.结石
E.腺瘤
参考答案：A
— _________________?
— Because it's warm. [ ]
A. Why do the flowers bloom in spring
B. Why do you put on your coat
C. Why do the leaves drop off the tree
A．放大镜
B．照相机镜头
C．近视眼镜
D．投影仪镜头
