数学兴趣课上,李老师给同学们出了这样一道题: 在一个长、宽、高分别是7厘米、6厘米、4厘米的大长方体上挖去一个棱长是2厘米的小正方体,求剩下的形体的表面积。明明是这样分
[病例]拿一张正方形纸,横竖两刀剪成4个正方形,再拿出其中剪下的一张正方形纸,同样剪成4个正方形……这样操作3次,共剪出多少个正方形?
[题目]有5个砝码,它们的重量分别为100克、101克、102克、104克、107克,但外观完全相同,无法看出轻重。现有一台带指针的台秤,它可以称出300克以内的物体的重量。怎样最
Ablative treatments currently represent the first-line option for the treatment of early stage unresectable hepatocellular carcinoma(HCC).Furthermore,they are e
Eosinophilic gastroenteritis(EGE) is a rare and benign inflammatory disorder that predominantly affects the stomach and the small intestine.The disease is divid
Metabolomics has increasingly been applied in addition to other 'omic' approaches in the study of the pathophysiology of different gastrointestinal dise
AIM:To validate methods for determining mast cell density,extracellular major basic protein content,and presence of fibrosis in esophageal eosinophilia.METHODS:
AIM To examine the role of A20 in the regulation of intestinal epithelial cells(IECs) inflammation.METHODS Using gene transfection,both stable overexpression an
工程问题是分数应用题中的一种特殊情况,研究的是工作总量、工作效率、工作时间这三者之间的关系。在学习中,我们如能跳出“工程”看“工程”,不仅能沟通不同类型题目之间的
The frequency of diagnosis of inflammatory bowel disease(IBD) has increased in younger populations.For this reason,pregnancy in patients with IBD is a topic of