A:none of them; which
B:and none of whom; that
C:none of whom; which
D:and none of them; that
如图,在长方体ABCD﹣A1B1C1D1中,已知A1A=1,AD=1,AB=2,则体对角线AC1与平面ABCD所成角的大小为____
诸葛亮的超凡智慧和军事谋略在下列哪场战役中得以施展( )