品德与生活作为一门活动型综合课程，其基本特征体现为生活性、综合性和活动性这三个方面。
As an activity type comprehensive course, the essential feature of morality and life is living, comprehensive and activity these three respects.
结果：弥漫型肝癌肝大小、形态、包膜、肝内回声、门脉等在超声图像上有一定的特征性改变及有其它临床特征。
Results: Diffuse hepatocellular carcinoma has some features in liver size, shape, envelope, echo genicity, portal vein, etc and some clinical features.
城市地理学是一门应用基础型学科，具有理论和实践相结合的特征。
City geography is a practical and fundamental science. It has the feature of combination of theory and practice.
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