患者女性，56岁，糖尿病病史10余年，肝区钝痛、发热5日。超声检查肝内出现一个45mm×56mm强回声团，形态不规则，边界模糊，内部回声不均匀，后方回声稍增强
声像图伴随时间最不可能发生下面哪种改变？（）
A.内部开始出现不规则液性腔
B.出现高回声的壁
C.出现较大的液性腔
D.内部出现气体回声
E.边缘显示不完整的晕征
参考答案：E
解析：随着病情进展，炎性细胞破坏引起肝组织发生坏死、液化，病灶内渐形成脓腔，外周包裹增厚，但边缘不会出现晕征.
| Artificial flowers are used for scientific as Well as for decorative purposes. They are made from (51) of materials, such as wax and glass, so skillfully that they can scarcely be (52) from natural flowers. In making such models, painstaking skill and artistry are called for, (53) thorough knowledge of plant structure. The (54) of glass flowers in the Botanical Museum of Harvard University is the most famous in North America and is widely known (55) the scientific world. (56) , there are several thousand models in colored glass, the work of two artist naturalists, Leopold Blalschka and his son Rudolph. The intention was to have the collection (57) at least one member of each flower family native to the United States. (58) it was never completed, it contains more than seven hundred species representing 164 families of flowering plants. (59) detail of these is accurately reproduced in color and structure. The models are (60) n locked cases as they are too valuable and fragile for classroom use. |
A．After all
B．For all
C．Above all
D．In all