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【单选题】
配对四格表中,用χ2检验比较两样本所代表的总体率有有无差别,下列说法正确的是A.
备择假设为两样本率相等
B.
宜采用四格表专用公式计算χ2值
C.
可以采用配对设计的t检验
D.
当有理论频数小于5时,需作连续性校正
E.
其自由度与独立样本四χ2检验的自由度相同
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【简答题】China, a ______ nation, is determined to combat all kinds of terrorism. (peace love)
【单选题】The sentence“…steeped in years of dealing with terrorism”in the 8 th paragraph means that
A.
London has been engaged anti-terrorism for years．
B.
London ham’t witnessext terrorism for years．
C.
London has been targeted by terrorists for years．
D.
London has been soaked in terrorkst attacks for years．
【单选题】下列关于全能王-I尊整体式亚克力面板描述正确的是哪一项？（）
A.
是行业中首款采用亚克力覆膜面板的立柜式空调
B.
是行业中首款采用如此大面积的整体式亚克力覆膜面板的空调
C.
这种一体成型的大面积亚克力覆膜面板容易变形
D.
这种外观之前就有其他品牌采用
【单选题】下列有关钣金锉刀的功能描述正确的是哪一项?
A.
用于锉平钣件表面凸起的点或检查板件平整度
B.
用于钣件表面粗打磨
C.
用于敲击钣件修复损伤并防止蹦弹
D.
检视板面平整度及修饰钣金原子灰
【单选题】关于表皮各层细胞结构特点的描述错误的是
A.
基底层细胞能不断增殖，分化为表皮其他层的细胞
B.
基底层细胞胞质内含板层颗粒
C.
颗粒层细胞质内有透明角质颗粒，板层颗粒多
D.
透明层细胞的胞核和细胞器退化，光镜下为嗜酸均质状
E.
角质层细胞胞质内充满角蛋白丝
【单选题】The prosecution ______ that the man had been responsible for an act of terrorism.
A.
advocated
B.
alleged
C.
addressed
D.
announced
【单选题】The sentence '. . . steeped in years of dealing with terrorism' in the 8th paragraph means that
A.
London has been engaged in anti-terrorism for years.
B.
London hasn't witnessed terrorism for years.
C.
London has been targeted by terrorists for years.
D.
London has been soaked in terrorist attacks for years.
【单选题】These countries will join one another against terrorism, was agreed to at the international conference.
A.
as
B.
who
C.
that
D.
what
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