题目内容

We often____(play) on the playground.

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Mike ____(like) cooking.

[音频]Yoga is something which is there for all 1)___. It is something which is a 2)_if you like to the stresses of modern life. It’s something which makes the person look 3)_, (and) see his place in the universe. It’s something which 4) person to person no matter what 5)___, what religion they belong to.Yoga includes physical, mental and 6)_ elements and although its exact history is difficult to pin down, it is believed to have begun in India several thousand years ago. In recent decades, its 7)_ has grown rapidly outside the country.Taking the time to breathe a bit 8) and stretch a little further, showing that even in Washington, 9) and 10)____ are still possible.

在方差分析中,所提出的原假设是H0:m1=m2=…=mk ,备择假设是( )

A. H1:m1≠m2≠…≠mk
B. H1:m1>m2>…>mk
C. H1:m1 D. H1:m1,m2,…, mk 不全相等

两直线的相对位置有三种，分别是：、、。其中、是共面；是异面。