A:33,89
B:23,79
C:13,69
D:43,99
____ 英语是你最喜欢的科目吗?Is English your ?____ 每天读书是个好习惯。It's a good habit to every day.____ 帮助别人就是帮助我们自己。Helping others is helping .____ 汽车站离我家很远。The bus stop is very my home.____ 他通常在放学后踢足球。He usually plays soccer .
如图,已知直三棱柱ABC﹣A1B1C1的侧面ACC1A1是正方形,点O是侧面ACC1A1的中心,∠ACB=π2,M是棱BC的中点.
(1)求证:OM∥平面ABB1A1;
(2)求证:平面ABC1⊥平面A1BC.
—I have Chinese. ____