骨髓瘤MRI表现的重要特点是（）
A．“地图样”改变
B．液-液平面
C．“穿凿状”改变
D．“椒盐征”
E．无特征表现
参考答案：D
When he grows up, he's going to do _____. [ ]
A. what he wants to do
B. what does he want to do
C. what he want to do
SIM卡中有A3和（）两中算法。
