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回归方程y=a+bx中的参数b是______。在统计中估计待定参数的常用方法是______。
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属于宫颈癌放疗的晚期并发症的是（）。
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患者男，33岁，煤矿工人，因“发热8d，心悸、头晕1d”来诊。患者于8d前受凉后出现发热，体温38.5℃，在当地县医院按“感冒”治疗，效果不佳，体温反升至39.4℃。留观数日后出院，居家观察，至第7天出现心悸、头晕和全身不适，且尿量明显减少，再次赴县医院予输液治疗，但症状改善不明显，当日下午血压为100/90mmHg，脉搏细弱，扪不清，立即快速静脉滴注液体，同时查血常规：Hb222g/L，WBC36.74×109/L，异型淋巴细胞32%，PLT10×109/L；尿蛋白和尿隐血均为（+++）。于当晚未携带任何诊疗记录急诊来院抢救。此时应采取的治疗措施是（提示患者入院经扩容治疗后生命体征尚稳定，但12h内无尿。入院次日晨Hb降至154g/L，WBC21.8×109/L，N0.49，PLT12×109/L；BUN升至19.3mmol/L，SCr277.6μmol/L。）（）
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关于准贷记卡业务的说法，正确的是（）。
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中兴S320设备正常状态下指示灯的闪烁状态为（）
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冲突规范，是指某一涉外民事法律关系，应适用何国实体法的法律规范的总称。以下各题分别列出一条法律规定，请分别判断属于哪一种冲突规范?在海牙订立的《离婚与别居的法律冲突和管辖权冲突公约》第2条规定：“夫妇非依其本国法及法院地法均有离婚之理由的，不得提出离婚之请求。”
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若实际产量每年以3．5％的速率持续增长，在( )年后实际产量将翻一番。A．10B．20C．30D．35
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Every country has traffic rules and signs, but are they the same? In most countries, there are street and road signs with 21________ about location,directions,dangers,cautions, and rules of the road. These 22 _________ tell drivers and pedestrians what to do and what not to do,including speed and parking 23 ________,places to stop,when to make turns,and other 24________.However, specific local traffic laws and practices usually differ around the world. For instance, in Japan, Indonesia, South Africa, the United Kingdom, and other countries ,steering 25________are on the right side of vehicles ,and cars and trucks drive on the left side of the road. In other 26 _________,such as the United States,Saudi Arabia,Italy, and Mexico,steering wheels are on the left side of vehicles ,and cars and trucks 27________on the right side of the road. An illustration of a local 28________law is the regulations for pedestrian and school 29 ________ in some Mexican cities:drivers rarely respect the rules,so for safety, people cross streets only at stop lights, on roads with little traffic, or on pedestrian-only 30 _________ across wide avenues.
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被称为第二肩关节的是：（）
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指使或者强令他人违反消防安全规定，冒险作业的，尚不构成犯罪的，处十日以上（）拘留。