问题
选择题
It is a truth universally ______ that behind every successful man, there is a woman.[ ]
A. commanded
B. acknowledged
C. alarmed
D. reunited
答案
答案：B
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It is a truth universally ______ that behind every successful man, there is a woman.[ ]
A. commanded
B. acknowledged
C. alarmed
D. reunited
答案：B
2Fe2++ I2设计成如图所示的原电池。下列判断不正确的是 
A组：CH3—CHCl—CH3、 、HCOOH、CH3COOC2H5 。