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单项选择题

CRH380A型动车组辅助电源装置分布在（ ）车。
A、1、8 
B、2、4、6 
C、1、5、8
D、 2、6

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单项选择题A3 A4 题型男性患者,58岁,外出途中突然头痛,眩晕,伴呕吐,走路不稳,查血压24 14kPa(180 105mmHg),心率62次 分,双眼向右眼震,右侧指鼻欠稳准,右侧巴氏征阳性。 进一步明确诊断的可靠检查依据为 A、详细追问有关病史 B、脑电图 C、头颅CT D、脑脊液检查 E、血糖、血脂、电解质检查

多项选择题__ are false statements of big data.

A．Big data is characterized by diversity and high speed.
B．In the thinking change brought by big data, it refers to more random samples.
C．"Big data" is a mass, high growth rate and diversified information asset that requires new processing mode to have stronger decision-making power, insight discovery power and process optimization ability.
D．The "Era of big data" has come.