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【单选题】
单纯随机抽样A.
最基本的抽样方法是
B.
将抽样对象按次序编号,先随机抽取第1个调查对象,然后再按一定间隔随机抽样称
C.
先将总体按某种特征分成若干个"层",再在每个层中用随机方式抽取调查对象,再将每个层所有抽取的对象合成一个样本称
D.
从总体中随机抽取若干群作为调查对象,然后对每个群中所有对象进行检查
E.
在大规模调查中常把抽样过程分为几个阶段,每个阶段可单纯随机抽样称
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皮皮学刷刷变学霸
举一反三
【单选题】I used to __________chopsticks. Now I get used to __________ knives and forks. [ ]
A.
used, using
B.
use, using
C.
using, used
D.
using, use
【单选题】I _____ get up very late But now I _____ getting up early. [ ]
A.
used to; am used to
B.
used to; used to
C.
am used to; used to
D.
am used to; am used to
【单选题】I don't swim now, but I ______ when I was a kid.
A.
used to it
B.
used to doing it
C.
used to
D.
used to do
【单选题】I ___in North China, but now I ___ the weather in South China.
A.
used to live, am used to
B.
used to living ; used to
C.
was used to living; am used to
D.
used to live; uesd to
【简答题】I don’t swim not, but I ________ when I was a kid. A) used to it B) used to doing it C) used to D) used to do
【单选题】I _____ be late for school, but now I ______ getting up early every day.
A.
used to; am used to
B.
used to; used to
C.
am used to; used to
D.
used to; am used for
【多选题】中国走和平发展道路的自信与自觉来源于 ()
A.
对实现中国发展目标条件的认知
B.
对世界发展大势的把握
C.
中华文明的深厚渊源
D.
中国正在取代美国的世界霸主地位
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