Signed: _______________________________________________ Approved: _______________________________________ Date ________________________ Benjamin J. Laugelli, Assistant Professor, Department of Engineering and Society
签名:_______________________________________________ 批准:_______________________________________ 日期 ______________________________________ Benjamin J. Laugelli,工程与社会系助理教授
签名:________Isaac Morrison_________________________ 批准:_______________________________________ 日期 ________________________ Benjamin J. Laugelli,工程与社会系助理教授