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【单选题】
()是团体健康保险与个人健康保险中事先存在条件条款的主要目的。A.
防止保险人变更保险金额
B.
保全保险人的业务
C.
防止被保险人从多个健康保险单中获得超过其实际遭受损失的额外利益
D.
防止被保险人的逆选择或道德风险
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皮皮学刷刷变学霸
举一反三
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【单选题】在建立数学模型的过程中,将复杂的物理现象抽象、归纳为数学模型,忽略一些次要因素的影响,对问题作必要的简化。这种对复杂客观现象的近似描述所造成的误差称为( )
A.
模型误差
B.
观测误差
C.
截断误差
D.
舍入误差
【单选题】患者，男，49岁，办公室文职。主诉：连续7天颈部酸胀痛，右上肢出现无力麻木。检查：颈部X线片，颈部侧位片见4、5、6节椎间隙变窄。颈部正位片见脊柱多节段失稳，压颈试验、牵拉试验均阳性，右手肌力Ⅲ级，诊断：神经根型颈椎病；颈4～5节，5～6节椎间盘突出。并见面色苍白，头晕目眩，少气懒言，神疲乏力，不怕冷，甚则晕厥，舌淡脉弱。经康复牵引和运动治疗3天，疗效不明显，要求针灸治疗。针刺时，符合近部取穴原则...
A.
风池
B.
大肠俞
C.
曲池
D.
肾俞
E.
后溪
【单选题】I thought about those small bits of self-confidence that were so painstakingly built in boyhood, and how they were being crushed at the counter. (Para. 6)
A.
I thought about how the young man had gradually managed to build his self-confidence as a boy and hwo it was now being destroyed at the counter.
B.
I thought about how a boy could be so shy and felt so much pain as he grew up and why he was feeling even more afraid to talk at the counter.
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A.
风池
B.
大肠俞
C.
曲池
D.
肾俞
E.
后溪
【单选题】I thought about those small bits of self-confidence that were so painstakingly built in the boyhood, and how they were being crushed at the counter.
A.
I thought about how the young man had gradually managed to build his self-confidence as a boy and how it was now being destroyed at the counter.
B.
I thought about how a boy could be so shy and felt so much pain as he grew up and why he was feeling even more afraid to talk at the counter.
【单选题】两种海绵的细胞分散成单个细胞混合在一起进行培养，一段时间后，发现同种的细胞相互聚集在一起，其中起重要作用的是细胞膜上的 [ ]
A.
糖蛋白
B.
磷脂
C.
RNA
D.
DNA
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