【单选题】
A <{p}><{font _mstmutation="1" _msttexthash="30175470" _msthash="364"}>横截面和 45°斜截面<{/font}><{br/}><{/p}>
B <{p}><{font _mstmutation="1" _msttexthash="34630063" _msthash="351"}>45°斜截面和横截面;<{/font}><{br/}><{/p}>
C <{p}><{font _mstmutation="1" _msttexthash="26801554" _msthash="288"}>横截面和横截面;<{/font}><{br/}><{/p}>
D <{p data-we-empty-p="" _msttexthash="41147522" _msthash="307"}>.45 斜截面和 45°斜截面。<{/p}>
查看更多
