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All car makers in China were involved in hot price wars last year to achieve high sales targets, but most of them failed due to customers' wait-and-see attitudes. But car prices are likely to drop by bigger range in the second half than in the first half due to car makers' increased sales targets and many new products competition.
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护士巡视病房，发现李某输液不滴，注射部位肿胀，疼痛，无回血，根据此情况应采取的措施 A.
拔针，立即另选血管穿刺 B.
拔针，更换针头，重新穿刺 C.
抬高输液瓶位置 D.
变化肢体位置 E.
调整针头斜面位置
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原子吸收分光光度计常见的原子化器
A、火焰原子化器    
B、石墨炉原子化器
C、氢化物发生原子化器
D、电感耦合高频等离子体（炬）
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