The pricing formula of European up-and-out call option with varied barriers is practicable.
其中，变界障碍时刻的欧式上升敲出看涨期权的定价公式具有较好的实用性。
Results The most frequent cardinal symptom of 496 out-call emergency cases was chest pain(26.41%), and cardiovascular disease toped the list of emergent diseases(33.67%).
结果该社区居民呼叫社区卫生服务急诊出诊的主要症状以胸痛最多（26.41%），心血管疾病占急诊疾病构成的首位（33.67%）。
Call that girl and ask her out. Call her right now. He who hesitates is lost.
打电话给那女孩，跟她约会，现在就打电话给她。踌躇不决者必然失败。
Brandon : I was bending over to pick up my crystal and I put my back out. Call a doctor would you? Ouch!
布赖顿：我在弯腰拾起水晶，但扭伤背部了，可以帮我叫医生吗？哎呀！
Brandon : I was bending over to pick up my crystal and I put my back out. Call a doctor would you?
布赖顿：我在弯腰拾起水晶，但扭伤背部了，可以帮我叫医生吗？
Brandon : I was bending over to pick up my crystal and I put my back out. Call a doctor would you?
布赖顿：我在弯腰拾起水晶，但扭伤背部了，可以帮我叫医生吗？
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