(专八04年改错)Congressional committees also have the power to compel testimony from unwilling witnesses, and to cite for contempt of Congress witnesses who refuse to testify and for perjury those who give false testimony.
cite sb. for sth. 似乎更为常见,因此我将 for contempt of Congress 看作原因状语且位于句中,不知是否正确,这里 witness 和 those 的部分是不是因为宾语太长而后置?