Questions 9 and 10 are based on the following news. According to the news item, the potential treatment for sleeping sickness
A. was identified by British experts.
B. has been put into service for 18 months.
C. has not fully been developed so far.
D. is taken by injection.
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What do we learn about NCLB
A. It proves to be a perfect educational program.
B. It doesn’t focus on test scores in reading and math.
C. It has negative effects on subjects not tested.
D. It has results in constantly tested subjects as expecte
条件同上,问区间[-1.96,+1.96]所代表的含义为
A. 它是的95%置性区间
B. 它是总体均数(μ)的5%置性区间
C. 它是该指标的95%正常值范围
D. 它是该指标的99%正常值范围
E. 它是该指标的99%可信区间
Questions 7 and 8 are based on the following news. From the drug trade, Mexican gangs gained ______ from the US each year.
A. $1.4 billion
B. $38 billion
C. $17 billion
D. $40 billion
Rohrer为
A. 体重(g)/身高(cm)
B. 胸围(cm)/身高(cm)×100
C. 坐高(cm)/身高(cm)×100
D. 骨盆宽(cm)/肩宽(cm)×100
E. 体重(kg)/身高(cm3)×107