Four and five is____.
— She didn't finish my homework _____ my father came back.
— So you went to bed too late.
读《沁园春•雪》，词语解释有错误的一项是（ ）。
如图，已知圆锥的母线长为6，圆锥的高与母线所夹的角为θ，且sinθ=13，则该圆锥的侧面积是
