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【单选题】
以下哪项不是引起手足口病的肠道病毒：A.
肠道病毒EV71型
B.
A组病毒
C.
鼻病毒
D.
埃可病毒
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举一反三
【单选题】Questionsare based on the following passage． One hundred years ago， 'Colored' was the typical way of referring to Americans of African descent．Twenty years later， it was purposefully dropped to make w...
A.
It is free from racial biases．
B.
It represents social progress．
C.
It is in the interest of common Americans．
D.
It follows the standard naming practice．
【单选题】The room _____ as a meeting room. [ ]
A.
used to being used
B.
was used to being used
C.
used to be used
D.
was used to be used
【单选题】The room _________ as a meeting room. [ ]
A.
used to being used
B.
was used to be used
C.
was used to being used
D.
used to be used
【单选题】In the past,ice ______food.
A.
used to keep
B.
used to be used for keeping
C.
was used to keeping
D.
used to be used to keeping
【判断题】不同时期数额不同的资金价值不可能相等。 2.利润总额为销售收入与总成本费用的差值。 3.互斥方案中，内部收益率最大的方案是最优方案。 4.变动成本是随着销售收入的增减而成正比例变化的成本费用。 5.国内设备的购置费为设备出厂价。 6.外汇的影子价格越高，产品是外贸出口货物的经济效益越好，项目越容易通过。 7.一般情况下，设备自然寿命大于技术寿命。 8.经验分析法、价值指数法、百分比法等方法都属于定...
A.
正确
B.
错误
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