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【单选题】
若一个班级有20人，其中“张”姓5人、 “钱”姓4人、“”姓3人、“”姓2人、“”姓2人、“”姓2人、“”姓2人，那么至少几位二进制数可以对这个班级所有学生的姓氏进行编码，划分为几组（ ）A.
3 ， 3
B.
4 ， 4
C.
5 ， 4
D.
6 ， 6
E.
3 ， 4
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举一反三
【简答题】00000000
【单选题】The ceteris paribus assumption is used in economic analyses in order to:
A.
cover special cases.
B.
include all relevant factors.
C.
add realism.
D.
keep the relationship between the two variables isolated from other events.
【简答题】To demonstrate international differences in how the global recession affected national happiness, the report yses changes in life evaluations from 7 to 2012-2014.
【简答题】Stylistic yses have extended in two directions: the ysis of non-literary texts and the ysis of literature for English teaching.
【简答题】Look at the results of engineering yses in journals or textbooks. What are the independent and dependent variables? Can a dependent variable be the independent variable in another experiment, and ...
【简答题】α-胰凝乳蛋白酶可以催化N-乙酰-L-Phe-p-硝基苯酯的水解,在不同的底物浓度下测反应初速度得到一组实验数据,见下表。求Km和Vmax。 [S]μmol/L V O μmol/L/min 10 11.7 15 15.0 20 17.5 25 ...
【简答题】甲公司通过电视发布广告，称其有100辆某型号汽车，每辆价格15万元，广告有效期10天。乙公司于该则广告发布后第5天自带汇票去甲公司买车，但此时车已全部售完，无货可供。下列哪一选项是正确的?（ ）。
【简答题】00000000
【简答题】Complete the following statements about Results section with proper words. The initial letter is given for reference.8. S_____ of the statistical yses may appear either in the text or in the relev...
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