点火前吹扫的目的是防止（）。
参考答案：炉膛爆炸
一块棱长是0.6米的正方体的钢坯，锻成横截面是0.09平方米的长方体钢材，锻成的钢材有多长？
–Are you fond of sports, Lily?
-- Not really. Honestly speaking, music _____ me more than sports.
A．appeals to
B．responds to
C．contribute to
D．attends to
