偏相关系数与回归系数显著性检验的t值是等价的 ( )
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偏决定系数与回归系数显著性检验的偏F值是等价的 ( )
A. 对
B. 错
Professor White has written some short stories, but he is _____ known for his plays.
A. the best
B. more
C. better
D. the most
It looks like the weather is changing for _____. Shall we stick to our plan?
A. the worse
B. worse
C. the worst
D. worst
Asia is ____ the largest continent in the world.
A. by far
B. a little
C. far away
D. a great deal
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