A．treasureB．pleasureC．sureD．measure
A. treasure
B. pleasure
C. sure
D. measure
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A．flourB．sourC．tourD．hour
A. flour
B. sour
C. tour
D. hour
What can we conclude from this passage？
A. Greeks and Romans significantly influenced European culture.
B. The Greeks were the founders of democracy.
C. The Greeks and Romans were bitter enemies.
D. People of the classical world were barbaric and uneducated.
A．deadlineB．handsomeC．adjustD．sandwich
A. deadline
B. handsome
C. adjust
D. sandwich
当总体方差已知时，建立总体均值μ的置信区间的统计量服从()。
A. 正态分布
B. t(n-1)分布
C. x2分布
D. t(n-2)分布
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