The murderer stood before the policeman, his hands ________ on his back, trembling.

A．tie

B．tied

C．tying

D．to tie

唐朝是我国诗歌创作的黄金时代，唐诗的繁荣与科举考试进士科重视考诗赋有密切关系。诗赋成为进士科考试内容与下列哪位皇帝有关？（  ）

A．隋炀帝

B．唐太宗

C．唐玄宗

D．武则天