髓质海绵肾的声像图表现为（）
A.肾锥体回声增强，形似面团，呈放射状排列，可有细砂状强回声，颗粒排列其中
B.多个肾盏扩张，肾盏内可见可见细砂状强回声颗粒，改变体位可见"落雪征"
C.肾皮质、肾柱区强回声分布，其后可见声尾、声影表现
D.肾盏区可见多个强回声团，后方以声影为主
E.肾轮廓异常，肾区见多个囊泡状结构，囊壁可见小片状增强回声
参考答案：A
| 情景交际。根据对话内容,从方框内选择适当的句子补全对话。有两项多余。 | |
Jack: We are going to my teacher's house for dinner tomorrow. 1 Lucy: 2 We can bring some candies (糖果) or toys for the kids. Jack: But I'm not sure whether they'd like them. Lucy: 3 I usually bring flowers when it's hard to choose a suitable (适合的) present. Jack: 4 I may also buy a small vase. (花瓶) Lucy: Great! Jack: Will you go to choose (选择) some flowers with me? Lucy: 5 1._____ 2._____ 3._____ 4._____ 5._____ |