如图,在四面体ABCD中,若截面PQMN是正方形,则在下列命题中,错误的为 A．AC⊥BD\x05B．AC∥截面PQMNC．AC = BD D．异面直线PM与BD所成的角为45°
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/29 23:07:49
xS]of+(R6æ"l|K&Ga[V2mڕq k &YHI'Bt1H)UyUҪ݇4ie>sΉoyE>txU xZK/H! [#4"
\C6z05 xևCɚ*+ rRgcU{ wdMU1f< &+:/5"W:
K?@EC( zi[@?Zsۓ*U*Z 9O^z~.TI)_P/.-|BƗ^C|/dRķ>L7CDp< `N S@R$C# CT6fd`J32AdR?
dC~2'(Gq L.aKbAsT&t8,Б`rT ? EoEr{$ _x#.'XڙRۊ1gmZCZ^2fBfH fh
6Tnqw,ſsxH3 l_Y6čc-TLC& }4 lUt5n 7m
j I'QE[gNVM 0Ӟa-?A
pk`2'J]gʉxK`c,?EJC (\hYڸukډ,×:-UYD U]N6e\{d@4 OV $.ϑ <@cLթ:] [&lf]WeS=@}:z/Em;hf
^a
'@F4 ]ރ/QW 3,rLl% 3Ξ93*HnZ(wl}3̰b9>e@Uu,#D|WtX&7_lUbƹ+WwD