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【简答题】
现有数值如下:-56,-85,31,64,-234,-36,55,31,-9,8,167,192,4,-78,-68,-206,-89,90,76,88,123,-15,-50,-92,76,-8,-129,128,-12,-42,110,89,41,-4,-202,-118,-41,227,-86,22,7,65,-49,-20,-124,70,-83,-74,189,28,-57,37,20,7,-14,-52,191,-95,-68,-107,-127,55,88,-109,54,16,-57,8,-43,168,43,-200,-86,-112,-32,20,120,13,53,-61,-76,-68,-155,17,122,46,11,-59,148,19,-96,-14,-115,17,128,-3,-223,1,-36,88将其转为20行5列的矩阵,对其每行内容求和,筛选出求和列中大于等于50%分位的所有行,则这些行中所有数值的总和是多少?计算过程中所有数据位浮点数,保持2位小数!
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举一反三
【单选题】Shall we ______ the chattering old lady until the end of the holiday? It’s awful!
A.
be stuck to
B.
be stuck at
C.
be stuck with
D.
be stuck on
【简答题】卫生洁具的分类?
【简答题】一般来说，生活必需品的需求弹性______，而奢侈品的需求弹性______。
【单选题】(P181)下列关于清洁、卫生用具标识的叙述,错误的是C
A.
拖把、扫帚于把手上30 cm上端涂上相应颜色:治疗室、换药室、办公室用黄色标记;配餐室用绿色;病房、走廊用蓝色;卫生间用红色
B.
治疗室、换药室、办公室、配餐室用蓝色水桶;病房、走廊、卫生间用红色水桶,水桶按拖把分类挂上所用室间牌
C.
护理单元、医院环境的医疗垃圾用白色垃圾袋
D.
护理单元、医院环境的医疗垃圾用黄色垃圾袋
【单选题】A Better Choice The next time you overhear a friend or co-worker chattering excitedly about SOHO, don't assume that they are talking about New York. In today's business world SOHO refers to 'Small Off...
A.
earning easy money at home
B.
making a life while making a living
C.
avoiding the complex office policies
D.
having more fun to work at home
【简答题】No one likes to hear constant chattering or___________ (high-pitched)laughing.
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