Stem cell in epidermis是（）。
WebofScience数据库中检索式“stemSAMEcell”指的是“stem”和“cell”必须在同一句话内。()此题为判断题(对，错)。
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在幼儿园开展STEM教育,最关键的是教师要有一种()。A.STEM知识B.STEM修养C.STEM能力D.STEM素养
对于STEM教育,以下选项中不正确的理解是()。A、STEM教育强调全社会共同参与教育创新实践B、STEM教育强调跨学科C、STEM教育面向所有学生并培养综合素质D、STEM教育注重传统知识的灌输
以下属于UE连接模式状态的是()。A.CELL-PCHB.URA-PCHC.CELL-FACHD.CELL-DCH
cell1是cell2的同频邻区，cell3也是cell2的同频邻区，但cell1和cell3不相邻。如果cell1和cell3的PCI相同，则认为cell1和cell3__。
CEL文件的表头是()A.990 TEMS_-_Cell_namesB.991 TEMS_-_Cell_namesC.992 TEMS_-_Cell_namesD.993 TEMS_-_Cell_names
共用题干 Stem Cell Therapy May Help Repair the HeartAccording to scientists in the USA,stem cell therapy may one day be able to repair the hearts of people with heart failure.Researchers at Pittsburgh University School of Medicine examined 20 patients who had severe heart failure and were going to have surgery.They injected stem cells into the parts of their hearts that were damaged.They then compared their hearts with those of people who had undergone surgery without having the stem cells injected into them(they had also suffered from severe heart failure).The patients who had had the stem cells injected had hearts that were able to pump（用泵抽运） more blood than the others.According to Professor Robert Kormos,one of the researchers,these results could revolutionize heart treatment.Although previous studies had indicated that there might be a benefit,this is the first study that has actually proved that stem cell therapy can help thefailing heart work better．All the patients in this study had hearts that could not pump blood properly.The scientists measured their ejection fraction（射血分数）.This is a measure of heart performance;you measure how much blood is being pumped out by the left ventricle（心室）.Healthy people's ejection fraction is about 55%.These patients had ejection fraction ofunder 35%. They all had by-pass surgery（搭桥手术）performed on them. Some of the patients had stem cells taken from their hip bones and injected into 25-30 sites in the damaged heart muscle.Six months later their ejection fraction rate was 46.1%while those who just had surgery but no stem cell injections averaged 37. 2%.No side effects were reported.Heart failure is a common problem all over the world.In the UK alone about 650, 000 people suffer from heart failure every year. As the number of people suffering from heart failure increases in the world in general these findings are particularly significant.Current treatments relieve the symptoms.This new stem cell therapy actually repairs the damaged muscle in the heart and has the potential of curing the disease. Heart failure is more common in the UK than anywhere else in the world.A:Right B:Wrong C:Not mentioned
