设随机变量X~t(n)n>1,令Y=2,则Y服从()( A ) Y ~ x 2 ( n ) ; (

设随机变量X~t(n)n>1,令Y=2,则Y服从()( A ) Y ~ x 2 ( n ) ; ( B ) Y ~ x 2 ( n - 1 ) ( C ) Y

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He has drunk too much to drive home safely.选择一项:A.

He has drunk too much to drive home safely.选择一项:A. 他喝了太多酒去安全开车回家。B. 他喝了太多酒以致不能安全

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When we heard of it, we were deeply _________.选择一项

When we heard of it, we were deeply _________.选择一项:A. movingB. moveC. moved

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代理人要对被代理人的代理行为承担民事责任。()选择一项:对错

代理人要对被代理人的代理行为承担民事责任。()选择一项:对错

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All of these presents _________ good to me. 选择一项:A

All of these presents _________ good to me. 选择一项:A. hearB. soundC. listen

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