在膝部特殊检查中，“患者仰卧位，膝关节伸直，股四头肌松弛，检查者一手手掌在髌骨上方压挤髌上囊，并用手指髌骨两侧，使液体流入关节腔，然后用另一手的示指轻轻按压髌骨”的是（）
A.浮髌试验
B.髂胫束挛缩试验（Ober试验）
C.研磨试验（Apley试验或膝关节旋转提拉和挤压试验）
D.半月板弹响试验（回旋研磨试验或McMurray征）
E.髌骨摩擦试验（Soto-Holl征）
参考答案：A
Friend is better than fortune. Friend is worse than poison in some  cases. The two sentences above are opposite and seem to be unreasonable but they can be explained as follows: the first refers to all good friends who drive us towards good while the second all bad ones who lead us to wrong ways.My ideal friend is of course a good friend whose goodness is shown below---he has no bad likings, such as smoking and drinking. He lives in frugality (节俭). He studies hard so as not to waste his golden time. At home he honors his parents and loves his brothers; at school he respects his teachers and shares feelings with his classmates. He treats those truly who are true to him. In a word, he has all the good characters better than mine. I can follow him as a model. With his help I am free from all difficulties. Indeed, if I have such a person as my friend, I shall never fear difficulty and I shall never know the existence of the word "failure". 小题1:This passage tells us ( )
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