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【多选题】
下列标志变异指标中,与变量值计量单位相同的变异指标有( )
A.
全距
B.
平均差
C.
标准差
D.
标准差系数
E.
平均差系数
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【判断题】自杀行为发生之前,当事人一般都会有危险警号。()
A.
正确
B.
错误
【单选题】艾滋病的医学全称为获得性免疫缺陷综合征,英文缩写为( )。
A.
AID
B.
HIV
C.
HPV
D.
AIDS
【简答题】inquiry economical assign authority recommenddecisive outcome scare investigate undertakeGoing by train is more ________ than going by plane.
【简答题】试述思想的历史地位和指导意义。(请将答案填写在下方输入框中,注:电子版)
【简答题】mythical occupy beneficial privilege original vision accumulateunderestimate economical assign recommend browse inevitable destination ambition historic diversity collaborate vital...
【简答题】Going by plane ______ me a lot of time because the train takes eight hours.
【简答题】Then, I check the costs involved in traveling to that particular place. If I’m going by plane, then I have to 12 on aire for different airlines.
【简答题】病人缺乏淋巴细胞叫做____症,是一种先天、遗传性疾病。艾滋病,即____综合症,英文缩写为____,其病原体的英文缩写为____。
【简答题】Many _____ (be) for going by plane.
【单选题】One of the ________ of going by train is that it takes much longer than going by plane.
A.
drawbridges
B.
drawbacks
C.
drawbacked
D.
drawback
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