女性，36岁。胆囊结石病史2年，昨晚睡觉时被突然出现的右上腹痛惊醒，腹痛呈阵发性剧烈绞痛，向右肩背部放射。导致该患者突然腹痛的原因是（） ["结石阻塞胆管下端，Oddi括约肌痉挛","结石损伤胆囊粘膜","结石嵌顿于胆囊颈致胆囊强烈收缩","胃及十二指肠痉挛","结石损伤胆总管"]
路面的附着系数不是固定不变的，当温度升高，硬路面的附着系数会有所下降。
A client roams from H-REAP AP1 to H-REAP AP2. The client is unable to associate to H-REAP AP2.H-REAP AP2 has six other clients associated to it， which continue to pass traffic. What has causedthis problem？（） ["H-REAP AP1 lost its connection to the controller.","H-REAP AP2 lost its connection to the controller.","H-REAP AP1 has reached its client limit.","H-REAP AP2 has reached its client limit."]
装用液力变矩器的汽车在松软路面或雪地行驶的通过性要好于普通齿轮变速器的汽车。
影响黄酮类化合物与聚酰胺吸附力强弱的因素有（）。 ["化合物类型","酚羟基位置","酚羟基数目","芳香化程度","洗脱剂种类"]
轴的功用是用来支承传动零件，传递（）和（）。
